Your question is too broad.

That is what I am telling you.

This can be eventually boiled down to nature vs nurture (this is the crux of your question), which is largely an unanswerable question.

We know that good genetics on its own does not stand to be a perfect scenario, we also know that perfect health doesn’t work either. What I am saying is it is both in unison to provide success, and not one or the other - hence the question of which provides the largest benefit is more or less is not a useful question.