And depending on who you ask, humans are also wired for negativity. In prehistoric times, it helped people do amazing things compared to bigger, stronger, more seemingly adaptable animals. It's probably how in the modern day, people seek to do something with their lives more than just work and have families.
Heck, that fact is an idea I like for humans in fantasy and sci-fi worlds. We want to accomplish so much in spite of our relatively short lifespans and lack of natural power. Well, short-lived and weak compared to elves and dwarves and psychic space aliens, et cetera, anyway. Thus humans are the plucky go-getters, the innovators, the empire-builders.
Humanity, fuck yeah.
Of course, just as you mentioned with modern dopamine depravation, people also have trouble finding ways to get their evolutionary fix. Social media is no different than the skinner boxes of predatory mobile games. And before that (and alongside it), drug addiction.