Not only that, but the possibility of committing a crime and getting away with it is the only way we could ever change the laws.

Sometimes things are illegal, and society changes and decides they shouldn't be illegal (interracial marriage, homosexuality, alcohol, marijuana, etc)... if people couldn't 'dabble' in the illegal thing at all, there would be no way for people to learn enough to decide that the laws are wrong and need to be changed.