All I have is my own experience, but there are loads of happy and successful people that came from a rough start.
From that very same experience I can also say that the trend for people to leave this world the way they came in seems stronger. I think personal values and culture play the strongest role.
Actually, having a screwed up reward system can promote success, as one often goes to enormous lengths to prove to oneself that one isn’t a worthless piece of shit, which is often the upshot of anhedonia.
Alas, it is an endless run. In the end, I'll always think that I am a worthless piece of shit.
It emerges as rampant pessimism and distrust of anyone and everyone. It's highly beneficial in the corporate world but has irreparably damaged my ability to bond with people. Which leaves me at a impasse as to whether to solve it. Given my age it's not worth it as I am well beyond my years of socializing freely.