What are some signs that you might be questioning your own sanity because of someone else's manipulative behavior?

Why do some people manage to keep a convincing public image while being harmful behind closed doors?
What does a genuinely meaningful life look like when titles, possessions, and public recognition no longer matter?
Can you tell immediately when a group of people is just pretending to agree with each other?
How do I avoid making it seem like I’m seeking recognition when I help orphaned children or poor people?