Any powerful wizard who lacks a bladder and is at the mercy of the local department store to stock depends...WILL end up evil...R's in his name or not. Just think of the jeers and whispers of the apprentices and guildmaster wanna-be's poking fun at the grand wizard wearing a diaper under his robes.

Chuckles and smiles only go so far. Eventually the result would be some serious soul scorching to get earn "proper" respect.
R-Tech