It is a good law, but I see no reason to believe in it.

It seems as invented as all other laws I've ever seen. It's not that I want to disagree though. I just question all things.

I'm philosophically skeptical, and cannot see a justification for this law, proving that it both exists, and is useful, and even that it is a good and just law.

What about it would compel a wicked antagonist to believe in it? If a person believed the exact opposite, and lived a life dedicated to harming people and causing loss, what would cause them to convert, and believe in your definition of common law?