It all really is a matter of belief. If you sincerely believe that something exists, then for you, it exists. It may not for others.
For instance, Scrupulous says that murder is bad. That is her belief. It is certainly against the law, but really bad? What if a wife had years of extreme cruelty by a husband, and she takes a knife with the full intention of killing him. That, by definition in law, is murder. But is it bad? If you believe it is, then it is!