Actually ... I wonder if those religious "sins" and "rules" were more made because of the times. Like eating pork ... since pork is such a dangerous meat if not preserved properly (as in no refrigeration).
I believe that makes a lot of sense. Most religious sins or rules are extremely old and don't follow with today's world. Religion is just something people made up to try to control other people, but then some people actually took it seriously and have ever since.