But that simply isn't true! What training did Michael Phelps do to get those extraordinarily long arms and flipper-like feet? Now don't get me wrong, he trains like a madman, but someone who trains equally hard without those genetic advantages is going to lose. Doesn't mean it's not worthwhile trying to be the best swimmer you can be. It does mean that you shouldn't get depressed if you can't beat him.
The people at the top of any field combine hard work with genetic predisposition. You need both because you will be competing with people with both.