Nope. The legal system of no country gets into that. They use metrics other than evil to determine punishments. Things like value of theft. Whether you used a gun in the crime. And so on. Evil doesn't play into it.
Then do it. Give me the numeric evil values of punching an old lady in the face, setting an empty building on fire, starting a forest fire, and killing 2 dogs. Oh, and since it's easy to quantify, you can provide the real world objective proofs.
No no. Objective is set in stone. Variations cannot apply or it's no longer objective. You can't say that stealing bread because you are hungry is objectively 3 evil in Rome, but only 1 evil in America. It has to be the same everywhere or the amount of evil is not something you can actually quantify objectively.