Broadly,
One Outsider, yes. Except for:
It is impossible for someone to lie unless he thinks he knows the truth.
Ask any psychopath how to lie, or even an old fashioned con man. They know what they are saying is a lie but they know out to make it sound like the truth.
I agree that the bul****ter thinks they know the truth and others have convinced themselves that they know the truth. Many politicians and CEOs are in the first category, special people like Tony Blair fit into the second.