A few decades ago I read a story, I think possibly about first contact or solar system colonization conflict, which included an interesting sociological setting.
The premise was that, as automation replaced human labor, ultimately the entire populace either consumed or was involved in the creation of entertainment media, and the "executive producers" and other high-end staff engaged in that global endeavor were akin to the tech giant moguls of today.
If it was indeed first contact, it would have possibly been conflict-based akin to Starship Troopers or the Chanur series, if I remember that correctly. Unfortunately, the main plot line is the less well remembered, versus the subplot of "media production as the primary focus of human endeavor" sub-theme.
I'm afraid I don't recall much more, other than that the two main protagonists were siblings or other relation, one of which was such a media maker executive and the other a military or political figure involved in the main plot line.
I would imagine it was published in the mid-70s to early 80's, since that's the period in which I was voraciously consuming sf paperbacks.
Any candidates based on these scanty clues?