No, you are missing something here. He got to the point of full empowerment so that he could continue with his quest to become whatever it was he was striving for. Losing empowerment was one of the steps that he was going to have to go through to accomplish it. Since he chose to go down the path of being evil and directly involving an evil imm, that was the path that he chose. Not one single prayer came from him seeking any type of healing from the evil influence.