1) Nobody cares who your parents are. That's one of the key pieces of magic in Silicon Valley and entrepreneurship in general.
2) Good ideas can't be bought. Everyone faces challenges and mountains to climb in starting a venture -- access to capital is just one of them. While having easier access to cash is helpful in the recipe, it's far from a determinant for success.
People might not care who your parents are but they care how much money you have and who you are connected to.
This doesn't seem to be the case historically. AFAIK, the vast majority of successful entrepreneurs in the valley came from middle class backgrounds.
I re-iterate that this is not meant to be snarky, but I meet several people who express this idea and many of them seem to be stuck in local optima that can be easily escaped with a little persistence.
Edit: a bit of nuance. I know most people in the world can't easily get 8-10k/mo salaries. But talented developers in the US (or willing to work remotely) can. I don't mean to be insensitive to people with more constrained opportunities.
No, we can't, if we don't live in Silicon Valley. I would call myself "talented", but the highest salary offer I've ever received was $87k/year. The lowest was around $72k/year. The average was around $80k/year.
Mind, most of these offers sounded better once you factored in things like stock options, working for a start-up, or really nice health insurance with stock options, but still. Outside of Silicon Valley, it's not at all routine to earn $120k/year as a programmer, even a reasonably good one.
EDIT: and I don't live in some Hicksville, either. I live in Massachusetts.
I think that having a family history in a certain business (like hotels) would make that firm more valuable for hotel-related startups.