Inherently flawed argument all around. You can't compare a good Paladin to a crappy full pink NIN. That doesn't say anything about the jobs. It just says one player is retarded and the other is not.

If you have a good player, putting them on Paladin will outdamage a full Aurore NIN, but putting them on Warrior will outdamage their own Paladin by a landslide while simultaneously making them significantly more useful.

Being a good player is not a free pass to make whatever the hell crap job someone wants to play seem sooper awesome just because they're better than absolute troglodytes.