Rich people (and not only them) already do much more than this. We all select the best mates we can get our hands on. The gain from this kind of gene editing i

Rich people (and not only them) already do much more than this. We all select the best mates we can get our hands on. The gain from this kind of gene editing is likely much smaller than simply having a bunch of kids with a very genetically fit individual, and that is exactly what rich people do. I also recall reading that some countries had strategies to foster interaction between very genetically fit individuals, beyond what would naturally happen by the general tendency of people to be attracted to others like them.