Your skin color, who your parents are (educated or not), where you live have a big impact on your life. The effect of parents and mentors (if you are lucky enough to find even one) have an out sized impact on your choices, I've observed this through personal experience. In high school, we had kids who i didn't think were that exceptional by any means but they got funneled into ivy leagues/top universities due to the fact that their parents were educated upper middle class types that push their kids, and give them proper guidance as to how the world really works. The talented poor kids were pushed to go to the local state universities by the parents who though top schools were out of reach/too expensive. The folks that went to the top schools went straight to SV/NYC/Boston, while the talented poor kids kinda stayed in our local Midwest cities, talk about a huge opportunity cost of being born poor.