Any less of that and he'd be a harder-to-believe character
I think the Animal Farm idea is on point. But for that reason, I don't see Jason as necessarily a sociopath, more as awful-in-a-way-we-see-often; he got a whiff of power and a dose of indignant anger went to his head, and in the group that blew up into a storm.
As in Jason's idea that Perry was "confused" or in denial, and bit of sexual assault will "help" him figure it out in the long run. It's awful, we've heard of that before too,
It's been a source of freshness for this story that that all that rot is inside Ross' social group, not out in dinosaur-class adults/institutions that they can deal with conventionally. I've quite liked the way the social dynamics aren't stereotypical, but they are recognizable. It's an intriguing idea that GSAs are high school clubs like any other. Because of course they are, but we get fewer stories about that side of them
I'm glad to hear you're going to unpack what's been up with Nicky while he's been mostly offstage the last few chapters.