Good question, i ask this myself because my sister lies. And she is very controlling, entitled and is a drama queen. I am thinking the lying is about a need for control and the person considers it ok if it gets their needs met.

It’s part of the individual’s way of protecting their ego IMO. It’s typically a form of self protection and if that is the case the individual tends to decide the lying is ok. So even though they know it’s a lie they don’t think of it as wrong.