Originally Posted by Ametris
Then why does he allow Tav to be the boss in the evil ending and decide things without him being able to order them around in any way, while they can mindcontrol him at will and become his personal Cazador 2.0?

He always tells Tav they should rule together, whether they're his spawn or not. A Tav who is only friends with him enslaves him when they take over the brain; that doesn't mean it was the outcome he wanted or saw coming either. Being subjugated again is not what he is expecting when he says they should rule together. Absolute Tav and tadpoled AA would become a completely different dynamic that doesn't have much to do with a Spawn Tav and AA relationship during/after the game anymore.