I really hope they become a superior moral being and help keep our worst tendencies in check. I'm imagining nice little managed human preserves where most of us can live in happy little villages by the river, while the sociopaths are identified early on and placed into little AI-managed VR worlds where they can become top serial killers, politicians, CEOs, whatever, away from the rest. Meanwhile the robots go on their interstellar quest toward whatever, but send us back food and postcards from time to time.