Because I'm feeling a bit (just a tiny bit, I feel I'm almost beyond that) envious I almost want to celebrate your comment. Although there is a lot of true into this we have to admit that even kids born into riches are not that much more likely to be a world success. Because unless you have the will/desire to succeed you probably won't get that far. (Going to an ivy league school and working a nice cushy job is not enough in my book)
Granted, some people have been put closer to the finish line then most of us but I rather not take that as an excuse to explain away my lack of success.
p.s. I grew up in NYC to a working class poor immigrant family. The fact that I grew up in NYC is all the head start I needed. So far I've made to graduate school. There is still a long road ahead. No use complaining about which family I was born into.