>If a criminal says that helping an old lady cross the street is the right thing to do, would you discard his statement because he is a criminal? No!

many people unfamiliar with Russia or similar countries forget that selective enforcement of law is a well established and widely practiced form of tyranny and abuse of power there. The same principle applies when people like Putin are selectively say/do something that may look like a right thing - it is just a tool of advancing their agenda. Like in your example with a criminal when he would point you to the lady requiring assistance, and would do whatever he wants while your attention is diverted. You'd need to discard his statement precisely because he is a criminal.