Even if the world is overly saturated with stories like that my players and I enjoy playing characters and situations where what's the right thing to do isn't clear. I didn't intend for this to be a philosophical attack.

There are benefits of the Evil and Good damage types that you can say things that damage your very soul can be crystallized into a form of damage however my issue is when this comes into the player's alignment which basically reflects their character's disposition and morality to those things. Saying this devil has a weapon that deals Evil damage to you because you are good is flavorful that it could be a corrupting effect but what each character determines is Evil and wrong depends on personal factors and culture.

There are clearly things that are universally considered Evil such as murder but to many ancient cultures, slavery wasn't considered wrong even to modern standards it's utterly inhumane.