Speaking strictly for myself, and not invoking any philosophers, moralists, theologians, creativity isn't a right/wrong proposition. It is about possibilities, and having faith that what you are doing will succeed. Without that unshakable faith, IMO, you don't create much of consequence. Why? Because doubting one's creative ability is akin to poisoning the well, at least in my experience. Doubt and skepticism about one's own creative acts is a sure fire recipe for creative blocks.

But that's just me and my opinion. I just can't figure out how a person could be skeptical about what they are creating, and actually create the damn thing at the same time.