Why not just throw away mortal alignment?

Outsiders are the ones that declare "good" & "evil" & such.

Classes like Paladin & Cleric, get auras that declare good & evil tying them to the celestial idea of good & evil, it makes then adhere to an otherworldly concept that most mortals don't follow so closely.

Idk I'm having trouble explaining what I mean... I'll try again later