I don't think the modest raise in IQ would be worth a society that considers children as products they can alter to specification. Bill McKibben in Enough wrote

I don't think the modest raise in IQ would be worth a society that considers children as products they can alter to specification. Bill McKibben in Enough wrote eloquently about the existential dread that could happen if we somehow managed to select for musical skill for example. It's one thing to deal with your talent or lack of it in terms of the randomness of normal life, another thing to realize you are little more than a racehorse that has been bred because your parents want you to be something.