There is no way the world would would be better without religion. That would mean all people believe the same thing, and that would be awful, because some people need to have decisions to make about that kind of thing. someone would have made a revolution. Without religion, there would be a common belief system, and that would drive people crazy. This is kind of like the Tale of Symphonia, where someone realizes stuff is effed up, and they fight against it. This would happen, and people would believe what they wanted to, instead of being forced to believe only one thing.

Quite a mouthful, sorry I got carried away :P