Exactly. And also the sense of community, the happiness given to the participant in a non-(self-)destructive religion, and an easy way for simpler people to understand some basic things about life (i.e. washing is good, killing everything you see is bad, etc).
It's all very well saying "everybody knows X should not be done, because it goes against Nature/Common Sense". However, unfortunately, some people are dense/retarded/need things to be explained to them in a simplistic manner.