He is already at a weak position right now so retreating will only hurt him more. He however has to consolidate and work with everyone as he need people to help him execute.
Why doesn't the IMF impose that no political leader , gov official would be able to fly first class, have assets abroad or travel in anything above 1800 CC and take charter flight.
Never celebrate anyone's death. Plus this guy had a really good repute. Only because he was in JUIf party doesn't means that everyone there is a bad person.