I think the answers here which suggest character names may be significant to a degree, may be on to something. Sapper has been suggested as a reference to taking the goodness from naturally grown plants like a tree or flowers, or the worms of the soil. Mariette, seems to be suggestive of a Marionette, an illusion or pretend act involving a body, and reminds us of Pris playing with the puppets. KD6-3.7's name Joe, seems to a male version of Joi, implying that she is the feminine aspect of his own unconscious mind, an amalgam of different implanted memories and TV/book characters. The book they read together, Pale Fire, is all about a man publishing his dead friend's magnum opus, a 999 line poem, and describing their experiences in a round about way. A tribute in memorium.
Rachael is named after the biblical matriarch, it would seem. Featuring appropriately in Genesis, she is Jacob's first wife, first love. She has a tyranical father, Leban, who they flee from, attempting to steal from him and becoming cursed in the process. Her first son Joseph is sold into slavery by his brothers by another mother, a hand maiden she grew up with who replaced her as child bearer when she was deemed infertile. Eventually she dies in child birth when she is finally given a second son in later life, Benjamin. She ends up on the road with Jacob in a time of strife, the wet nurse Deborah dies and is buried under a tree, then Rachel dies in child birth while still on the road and buried under a hastily erected column far from home by Jacob - on his death bed he apologises to Joseph for not bringing his mother home. Joseph and Benjamin go on to become the founders of Israel and the other brothers, the lost tribes of the north. So it ends in a sort of redemption for Rachel's two children. For most of his life, Joseph lives as the Pharoah's son in Egypt. If this is relevent then, Ana Stelline, the little star, is the beloved child Benjamin, rescued from a difficult birth on the road. KD6_3.7 would be, metaphorically, Joseph, transforming himself and coming to see himself differently.
So if names are important, Neander or Niander does seem suggestive of 'new man', or to put it another way, 'beyond man', over-man, which is an expression from Friedrich Neitzsche's Thus Spoke Zarathustra, which the Nazi's and Ariosophists misinterpreted as being a racial term. Philip K Dick explicitly stated that his Androids book, the basis of Blade Runner, was based on reading the testimonies given at the Nuremberg trials and subsequent information regarding cold, inhuman concentration-camp staff. The common aim amongst extreme utopian ideologies is to be 'more human than human'. Wallace uses language in a very grandiose way suggesting he has some totalitarian vision in mind, similar to many 20th century fascists or dictators. He has the private army as well. 'Wallace' also conjures up images of the stranger from the north bringing war, and Niander does come from a space station to wage a sort of war on the Earth, which he believes is righteous, but which causes great suffering. In the prequel, 2022 Blackout, it is explained that most rebels fled from the army when they realised they were taking part in convoluted wars between different paying customers, rather than any genuine conflict. Wallace is also a historical name suggesting a sort of hereditary type of legitimacy, although it may well be a post-black-out name which he has adopted to set up a company, rather than his birth name. It is interesting that Wallace seems to be a 'data hoarder' and has somehow inherited all of Tyrell's secrets. In other words he has inside knowledge of how Tyrell Corp operated, which places him amongst either developers or creations. What we know for sure, even from the first film, is that there have been various replicant rebellions which have built in scale. If Wallace was in line to benefit, did he perhaps start or help start those wars? He twice clearly links the prosperity of human civilization, 'we', as dependent on replicant reproduction when he says, "We need more replicants than can ever be assembled, millions so that we can be trillions more." Following this, he says, " We can retake Eden." It's very unclear here who the 'we' are.
The reference to the non-existent 'Galations Syndrome' that Rachel's child does not die from, comes in the form of a DNA-base examined by K, after Deckard has shown the replicant army how to 'fix the records'. The replicant army uses the 'nicean creed' definition of humanity repeatedly (many reviewers have pointed this out), which comes from the book of Galateans and refers to Christ's birth to a human mother so that he could experience the same life as the people he was apparently saving, the Lord's sacrifice.
Although the replicants don't seem to have religious beliefs, they do utilise classical philosophy, where as Wallace has an alternate interpretation of history which involves the ascent of a new mankind. It's never really clear exactly what that entails, but in the 2036 prequel, he states that replicants can live as long or as short lives as customers require. It seems likely, from the point of view of someone who knows exactly how replicants are made, that he no longer differentiates between human and replicant, rather he just views mankind as made up of different castes of different abilities assigned different jobs according to the needs of an economic empire, like a giant British Empire, where he would be like the East India Company. He talks of civilization losing its stomach for what he deems necessary to conquer more territory and explore (slavery, commercial wars). So to ask whether Wallace views humans as slaves, 'robota' as Karel Capek called them, would be to ask a colonialist if he believes some people should be classed as slaves or subhuman - it depends on which humans. It seems Wallace views creators of life, social engineers, as truly human and everyone else as a lower order, that needs to find a higher purpose, whether that be replicant humans or regular humans. For instance, he may have intentions to create replicants who are like him and have them rule his empire alongside 'worthy' humans.
The eye problem is interesting because he refers to it as an affliction, but there is no sign of disease on the man. He seems very healthy and isolated from disease, like a less paranoid version of Howard Hughes, mixed with the megalomania of Gordon Gecko and the fervour for a new technological totalitarian 'futurist' world of war and conquest, like a Mussolini. And this extremism is channelled through the slick presentation and trans-humanist visions of technology billionaire. If you look at Wallace in BR2036, he is identical in 2049 and came to prominence around 2022. He seems to age very little.
The most likely option seems to be that Wallace is a crazed trans-humanist who has deliberately removed his eyes in order to upgrade them, rather than someone who is literally a replicant. Whatsmore, he may have several life-extending, intelligence augmenting or cybernetic features to his body - Luv has a whole series of eight different microchip devices to plug into his visual cortex region and only uses one, giving him a 3D map of the whole space, in any light spectrum, from any angle, in minute detail - metavision. The line between replicant and augmented cybernetic human is quite thin. It all comes down to what method they use to 'programme' or condition the mind of mechanically born humans. We can see from the example provided in Wallace's laboratory that these cultured, synthetically incubated humans, are not born with fully formed replicant type minds. So we therefore know very little about what aspects of their behaviours are genetic and which are trained into them while they are in this early malleable, "clay" state of being.
Finally, I think the wording of K's baseline test is very revealing as to the ideology of the state-corporate government:
"A blood black nothingness began to spin. A system of cells, interlinked within cells, interlinked within cells, interlinked within one stem. And dreadfully distinct against the dark, a tall white fountain played."
This could mean that Wallace sees himself and his colleagues as the fountainhead, the fountain of youth or health. And everything else should arrange itself, like a hive, around this essential stem of power, lest people get abandoned in the darkness of uncultivated barren space. As with the honeybee hive though, you could choose to reinterpret the image in a more positive way if you were a replicant rebel or their human allies.