The anti-social skills of spontaneously getting strangers to like you were not necessary in rooted societies, where you'd know the same people over the course of your entire life and there was no need for pretensions and malevolent peacockish behavior. The social context remained stagnant throughout your entire existence, and this was favorable terrain for autistic people, who desire continuity and order and predictability, as well as tinkering with objects (creating and fixing tools) rather than tinkering with people (manipulation).
Spontaneity and changing social contexts as soon as your reputation diminishes after stabbing everyone you know in the back is something that psychopathic narcissists specialize in, which is why they prosper so much in the alienated landscape of modernity (e.g. Drumpf). In a more rooted society, they'd be ostracized and probably killed or otherwise die, and sometimes still are after a lifetime of audacious success (e.g. Jeffery Epstein and Robert Maxwell).
You have a point that life is not ideal in any context, but it never is, given that we are all bound to suffer and die. Nonetheless one can see how those with ADHD are more suited to a mobile existence in the forest, those with autism are more suited for a sedentary existence on a farm, and psychopathic narcissists are more suited for the modern corporate boardroom. This is not to say that even psychopathic narcissists are not discontented by their existence in modernity -- they very much are, lol -- but perhaps this discontent is precisely part of what makes them so successful, as with the impulses of those with ADHD in a hunter-gatherer tribe, and the obsessions of an autistic farmer.