Stealing is obviously not as bad as rape or murder. There's an easy test for this. Take some random people and ask them if they'd rather have something stolen from them, or would they rather be killed. If the preponderance of people answer one way rather than the other, then one can infer that one is worse than the other. I asked a few people, and they all said they'd rather be stolen from than killed. So, in my area anyway, people seem to have decided that killing is worse than stealing.