I understand where you're coming from and there are definitely statistics and luck at play in the game of like, but I don't fully agree with your conclusion.

As someone who also came from a slightly lower income background I had a lot of support encouraging me to cultivate a habit of reading and from my parents that helped me heaps. Anecdotally, I know many people who came from much higher socioeconomic backgrounds who grew in the exact same environment as I did, couldn't care less about sciences, learning, etc.

The United States has a huge problem of anti-intellectualism and it is looked down upon a lot if you're into computers, a nerd, etc. If you go to third world countries like India, etc. you'll realize that even people who are dirt poor place an extremely huge amount of importance on education. Because time and again, they've seen that the only way to get out of their pit of poverty.