@Region Philbis,
I got my Beatles confused; they all look alike. I think Lennon was on to something. What would a world without religion look like? It would be a world where personal responsibility replaced superstition. People would have to take personal responsibility for their sins they could no longer say the devil tempted me or the devil made me do it. They could no longer confess their sins and be absolved of their sins or be "saved" and their sins washed away. Empathy is our guiding light when we sin against others it creates a dissonance in us that is uncomfortable. The Pleasure Principal dictates that we move toward pleasure and away from pain. We would move away from that dissonance and be less likely to repeat sin until the religious scam takes over and offers an off ramp that avoids dealing with the dissonance, the pain. Religion removes your personal responsibility by a using a human sacrifice that happened 2,000 years ago. Jesus died for your sins. Does that make any sense? There are other alternatives as confessing your sins or being saved that will cleanse you of your sins.
Removing your sins by whatever way short circuits the natural empathy process. Remember the Pleasure Principal the religious scam steps in to remove the pain caused by your sins. This is the path of least resistance if your sins can be removed by the local witch doctor you don't have to become a better person but if you have to deal the dissonance that sin causes you will be more likely to avoid more pain in the future.