I don't get what your point is. Are you defending sociopaths? I mean, yeah sure they are what they are through probably no real fault of their own, but they are a net negative on society's balance sheet. They are a problem that needs to be managed. Maybe back in the day when we had to worry about other animals hunting us for food, and a bit later when we had to worry about other tribes murdering us and taking our things, then yeah sociopaths served a purpose.

They don't now.

(Oh, and sociopaths aren't very great at manipulating their environment. The high-functioning ones, maybe, but most sociopaths are poor, stupid, and often in jail.)