So, to borrow a phrase, it might be healthy to sometimes sprinkle the genetic tree with the blood of those of certain... characteristics?
Naturally, that begs the question of which characteristics should be removed. Any particular ones come to your mind?
I'm not remembering or concerned with where else that phrase may have come from. Please, enlighten us.
As concerns your baiting question of characteristics which come to mind, what was it once upon a time that our creator wanted wiped clean?
Does He still want it wiped out?
If you don't know then hit the books.