Interesting topic. But genes are inherited, not earned. Earning implies work and effort on your part.
If you came to this life with good looks, and it gives an advantage to you, good for you. And yes, there is a level of effort involved in staying fit healthy and in shape. But since much of it is out of control, for %95 of population, it is much better to develop core skills rather than superficial things like good looks.
There is some luck involved in everything. Since much in life is not an exact science. But good looks is like, having inherited millions of dollars from your parents, %100 luck. And smarts, hard work, and grit are, %99 hard work, %1 luck.
You had me up till you last sentence. Ambition and smarts are equally a matter of "luck". Read my other comments above to get a better understanding why.