Humans are literally Jack of All Trades. The big evolutionary advantage of brain power is that it lets animals adapt to new things in a single lifetime, rather than having to evolve adaptations to it over generations, and humans primary evolutionary advantage is our massive generalized brain power.

Capitalism says to specialize, human nature says to be a jack of all trades.

I assume this community will disagree strongly, but ADHD honestly does not seem like an actual disorder (as in, an objective detriment, and one that evolution would select against in the long term), so much as just our brains not being particularly suited to capitalism and capitalists gas lighting the masses into thinking that's abnormal.