If he has no conscience, he will use force.Some do, and they could certainly be wrong. Especially when they assume that force is acceptable in that quest. Yet it's precisely because they believe this that it will not accur to them that they might be wrong. A man that cannot be wrong is a man that thinks he is a god. Or an extension of God. Which is exactly why such an man is so dangerous and toxic to everyone around him. The man-god has no conscience at all. He thinks he is righteous in everything he does.
But the Godly do have a conscience, and love their neighbors as they love themselves.