Well that’s not what this article says, but I think it would apply. A study was conducted across several cultures to see if belief in an all-seeing god made people more neighborly, and the result was yes. Not that surprising really, essentially people tend to imagine that their god’s have minds much like their own. Now it is one thing to have your conscience nag you about your misdeeds, but if you believe that your conscience can pay you back for your evil, then the impulse to take the easy way will be less attractive since you will predict that in the long term it ain’t that easy. The trick though is what happens when people no longer believe that the universe acts according to the demands of their conscience. Sure the occasional saint does good for its own sake, but for the average Jane does unbelief foster selfishness?