Well, in that case, even if there was a point there ..
then, what about late developers like Beethoven or Einstein? Although Beethoven was a very good pianist since childhood, he didn't bloom till very late teens, and wrote nothing of consequence till his early twenties.
This is all about me dive-bombing a 'Gattaca-type' mentality. And come to think of it, since your participation here seems to be based on the importance of social culture and principles, then you would probably hardly sympathize with the eugenics mentality either.