What if the "changes" are simply optimizing someone's genetics? i.e., eliminating /fixing any genes that are bad mutations, so you get the best possible combin

What if the "changes" are simply optimizing someone's genetics? i.e., eliminating /fixing any genes that are bad mutations, so you get the best possible combination of genes from the parents? Or, suppose someone really does have a beneficial mutation that naturally occurred, and isn't the product of genetic engineering. Are you going to disqualify them because neither of their parents had the mutation?