Exactly. This is the world we live in. My point is that religion, in itself, does not stop people from being "bad" nor does it ensure that people will be "good". People will always do evil things, either because they can not control themselves or because they justify it using religion (hi there, Osama!) and imagining that god is on their side. Thus I can easily imagine that a world without religion (or one that had progressed beyond it) might not be that bad of a thing. (keyword: imagine)
..and yes, I believe in good and evil.. I just see them as human conditions and concepts, not as religious beings.