That. And the aspect I'm trying to emphasize is, those profit-maximizing people are technically free to choose to not profit-maximize, but then the system will happily punish them for it. They can nudge the system, but the system can nudge them back, all the way to ejecting them from whatever role they played in that system so far. And yes, the system is just made of other people.

That's the nature of self-reinforcing feedback loops.