Somehow I have a wider range of friends and family than most people, and the thing that is missing from this conversation is that most people by far don't know anyone wealthy, especially if they're not themselves wealthy.
The issue with that isn't just the money and connections themselves. There's a cultural gap of "I couldn't do that, only people on TV do that" whether it's starting a startup or pursuing one of those one in a million type careers like acting or sports.
There's a risk behaviour that is also affected by background. Basically you're pushed to not take too much risk: your parents' entire productive output has gone into your education, you can't just take a chance on it.
Case in point is my family. The parents all got spread around the world as refugees back in the 1970s. Everyone worked really hard but they told their kids to go the safe route.
I have a cluster of cousins in the bay area, what do they do? None of them do startups. Doctors, nurses, and Google.