This is not about men and women. Yes, a Fafnar is a female representation, but Bastesh is also a goddess, why not her?
Also when we ask the Queen about gods, she say that Crunor is the main god worshiped by Carlin, which is clearly not.
About the Lightbearer I really don't know what's going on there, except the idea that Cip forgot about it.
Yes, she's the sun goddess and fire what also means life, but thats the point, Suon and Fafnar are gods of the sun (yes, Tibia have two suns), While Suon represents calm, and benevolent sun, Fafnar represents the scorching sun.
Unless the NPCs and CIPSoft are lying to us, Fafnar is an evil goddess.
She tried to kill Bastesh beacuse of envy, When we ask two sides inside the game, priests and Lugri (the only npc that claims to be evil that I remember), they say that the evil gods are Fafnar, Zathroth, Brog and Urgith.