A recent question about capitalistic alien invaders reminds me of a short story (there may have been a sequel as well) I read back in the 1980s. I believe I would have read it in a magazine, which means most likely Analog, since I've recently been re-reading Asimov's and haven't come across it. (And I didn't subscribe to Fantasy & Science Fiction.)
As I've noted previously, my 1980s-1990s Analogs are mostly in the nebulous zone.
The story is told from the viewpoint of some supposedly incorruptible trouble-shooter type of an alien race that has conquered Earth. They have very strict rules about contracts, and equally strict rules about (against?) relationships which are not governed by contracts. Thus, when they came to Earth they dismantled all governments (any many other human institutions) as illegal monopolies.
The trouble-shooter is sent to a small community, possibly in New Zealand or Australia, where there is suspicion of illegal activity. He recruits or conscripts a local woman as a native guide, and she tries to convince him that social/collective organizations are how humans function, that humanity can't exist the way the alien society is organized.
I don't recall precisely what the illegal monopoly was, but it was some sort of normal (to us) community project - something like a public library, or a community theatre. The people of the community have tried to create some kind of alien-friendly façade, by creating something like a company governed by a pool of ownership shares, but it is fairly transparent, at least to the alien.
The alien comes to the conclusion that his guide is right, humanity can't live like the aliens, but he shuts the endeavour down anyway, because he can't do anything else.