I am not sure if you ever heard of Narcissus; he was a hunter in Greek mythology, the son of the river god Cephissus and the nymph Liriope. He only showed contempt to anyone who fell in love with him. He didn't have a happy ending; if you are interested, you can read about his demise. Well, what has this to do with you? There is a whole category of psychology that deals with Narcissistic people; they are people that devote all their energy to being right. Whenever, they are at fault for something, they try to lay the blame onto other people because,
A) it hurts their egos to think that they were wrong and, B) Even if they know that they are wrong, narcissists want to avoid acknowledging it at all costs. The truth doesn't matter to them.
If you are dealing with people like this; I will show you how to be caught in their web.