Absolutely, most parts of neurodivergence is evolved to be useful for "wild" humans, hunter-gatherers. Like gee i sure wonder how it might be useful for people living in tents in the wildnerness to have a dude who just cannot go to sleep before 2 in the morning..

Apprently court jesters were historically generally autistic people, whom the rulers kept around because they wouldn't sugarcoat stuff and acted like a bullshit detector. Might be pretty handy for a tribe to have some people who'll speak up when they think the leader is being dumb.