Self-Betrayal
If you go along with an untruth, an untruth that is apparent to all reasonable people, and you do so out of fear that disagreeing with that untruth will reflect poorly on you in the eyes of someone you admire or want to ingratiate yourself with, you are committing an act of self-betrayal. Anyone who expects you to behave in this manner is a tyrant.
I think you know what I’m talking about…