Jesus is not infinitly powerful. He gets his power from god. My understanding is that while on earth jesus could do what god could do but he was loyal to his father. If jesus started to be evil I think god would have shut him down in about a second flat. A soul in hell is not like a drownding person. These people knew they would go to hell if they didn't repent. If a person knew he was going to drowned if he went in the water would they do it? once they do it they have made there choice. Jesus did try to save people from hell. when he was on earth he tried to save everybody.