If you need a tag of "lawful" or "evil" for other players to identify your character's alignment, then it's not a well developed character. Useful for deities and npc's, but hopefully Larian does not build alignment into the game (or if they do, it's superficial to please fans of 3e).
As other posters have mentioned, it would be really cool if they mixed that into facial expressions and dialog quibs when moving around the map
