If wind up records didn't want a be on itunes only cd's sold in stores. Would this hurt Itunes?

That's a complicated question and could be answered both ways. Yes because then iTunes wouldn't make any money off of those bands, On the other hand, no it wouldn't hurt them because iTunes is part of apple, which just so happens to be a multi billion dollar corporation and even tho they would lose money it wouldn't be a significant amount in comparison to their billions