He doesn’t want to admit that his actions are doing more harm than good. All he wants is for everyone to live happily. Yes, he does it for the sake of others.. but it’s a little bit for himself. To rid himself of guilt, even if it’s just for a little bit, until another V̶I̶C̶I̶T̶M̶ person in need comes his way. It’s obvious to all of us that he’s living in his head. Nightmare sans is the leader of the bad sanses and acts like a dad to you all. The rest are Killer, Dust, Horror, Cross, and Error.