You can define it how you like, the nature of a NIMBY is that whatever it is, they don't want it near THEM (hence Not In My Back Yard) and affecting THEM, but they don't care about how it may affect others. If they were against whatever the thing is it wouldn't matter if it were their backyard or someone else's, they're only concerned with THEIR lives. When all you care about is you, you don't care about others and that's anti-progress.