Hypocrisy is the homage vice pays to virtue.

The fact that people bother to pretend is itself evidence of what counts. Nobody dissembles about something that carries no weight; the lie is shaped exactly like the standard it is trying to seem to meet. So hypocrisy, irritating as it is, is backhanded proof that the standard holds. A world where nobody bothered to pretend would be colder than this.

When you catch someone posturing, note what they are pretending to be, because that is a real clue about what is valued around them. And when you catch yourself doing it, take it as a signal of what you actually want to be, and close some of the gap.