You seem to be conflating "necessary" vs. "sufficient".
Elon's inherited wealth and excellent upbringing were necessary for his Tesla and SpaceX success, but far from sufficient.
If a good rich childhood was all that's necessary to commercialize electric cars, reusable rockets, and fast satellite internet, then we'd have a lot more of these kinds of amazing products as millions of people have good rich childhoods.
Elon's inherited wealth and excellent upbringing were necessary for his Tesla and SpaceX success, but far from sufficient.
If a good rich childhood was all that's necessary to commercialize electric cars, reusable rockets, and fast satellite internet, then we'd have a lot more of these kinds of amazing products as millions of people have good rich childhoods.