Lucifer was the lightbringer, but he didn't exactly get a good rap. A mighty force for Team X finds he has a better idea of how to look at things, angers Captain X, big battle, and Lucifer spends the rest of his days trying to seduce people to his side. But still gets together with Captain X on Tuesdays for poker night, because that's how the mighty forces roll.
Lucifer has to bring the cookies, though, and only gets the leftover coconut-flavored ones nobody likes. It's a small price to pay for the company.