First of all thank you for bringing up the movie, I've seen it as a kid and I've been wondering ever since what was the title, since I only remembered bits. This movie has literally been bugging me for years, now I can finally see it again.

That said, ambition, work ethic and passion are also important, but they're a product of genetics too.

Take two guys, one is smart and spends his days trying to solve complex problems, while the second one is just as smart but spends his days on Netflix. What's the difference between the two? Mostly dedication, but what provides the former with it? Yep, genetics.