I'm sure they do. That's not the point. Some people, when drawing the genetic lottery at birth, just get really really darn unlucky. They're going to suffer from a young age and their prospects for a quality of life on par of that of their peers is going to be critically hindered from the onset.
The point of such augmentation should be to reduce inequality, not increase it. Since such procedures are inherently expensive, if we allow the elites to create "superhuman" children then that runs contrary to this goal because the social status of normal people is going to be reduced by this development, quite possibly to the point of the emergence of a caste-based society. Obviously such procedures are going to be fairly expensive, so "augmenting everyone so that they're all in the same boat" is not going to be an option, or at least not initially. Even if it should become feasible to augment everyone in the United States, or the Western World, global inequality will still be exacerbated because many people in poor countries will still not be augmented, and so there'd be a large global second-class citizenry.
Right now the divide between an American and a Haitian is "I'm well off and you're dirt poor. It simply concerns what society I was born into, which grants me more opportunity than your society grants you and it says nothing about the inherent worth of either of us as human beings".
But if this happens, it'll become "I'm a biologically superior life form to you. I could crush you like an insect and it would not be morally wrong for me to do so because you're an inferior species."