Technology and the world of tomorrow, a split society between those genetically enhanced to be stronger and smarter, and those born without enhancements, what is there to complain about?

If science marches forward to the point you can doctor the genetics of your children (of course it will be more assessable to the wealthy) that they be like those of Gattaca or Star Trek’s Khan, what would there be to complain about? Would that not be natural selection even if accelerated by genetic manipulation? Man being the recipient of the anomaly of the fluke of life even being here (from a world is just the world perspective) to have develop a superior intellect that allows him to greatly control other mammals that are far stronger, faster, less intelligent, and larger than himself, humans that develop to be faster, stronger and way more intelligent than their neighbors would be in the same grain even if not a happenstance anomaly over eons. Should science usher in that dispensation and those who can take advantage do, what would there be to complain about, should it not be received with much greatness and joy?