In fiction, a mobster might have someone killed that he hates, and then give a positive eulogy at his funeral. The victim's family may even thank him for the sweet words.
A fictional dictator may assassinate people lawlessly. The dictator could then celebrate the rule of law and the Magna Carta in speeches and holidays, even though he had rendered them pointless.
Is there a word or phrase for this practice?
My many searches have not turned up any.