Why one entrepreneur hits a home run and another languishes has more to do with the times, and how the team of people behind the front-person executes. All companies are dysfunctional. Part of the dysfunction is the idea that the company is realized in a single brain. I still believe some brains resonate with the world more effectively than others, and some brains can teach other brains how to resonate. Yes it matters, very much, who is leading a company.
Luck plays a big role too.
Most of the heroes we look up to were good at picking up other people's ideas, not synthesizing their own. Some of them have no ideas at all, they just are good at sensing where the world is going. And others play the game by covering every bet. A blind spot, but it was easy to debug for a couple of reasons. It's like putting a printf or writeln or dialog.alert statement in a program to debug it.