Overall, professions give very similar bonuses once they're near max level. 320 intellect from 2 gems, or 320 int enchants on rings, or +320 int from 2 serpent eyes .... it's pretty much all the same with a few minor differences. So if some character has those bonuses they get small profession bonus score.
However, we can't ignore professions. For example, if 2 players have exactly the same gear, and one of them has profession bonus while the other has no professions at all, would it be fair to score them equally?