That might inadvertently select for politicians who believe what the voters want to hear over those who lie but know its a lie. Since the later want to get re-

That might inadvertently select for politicians who believe what the voters want to hear over those who lie but know its a lie. Since the later want to get re-elected they'll quietly abandon the good-sounding-but-horrible plans they talked about to get into office but the former will actually try to carry them out.