What They Think
Everybody puts on the brakes before acting when they consider what others will think.
I would guess that many refuse to do what is best because of what they think.
I am often amazed at how each man loves himself more than others, but cares more for the opinions of others than of himself. If a god should appear to a man, or a wise teacher and charge him to cease to think or imagine anything which which he would not make known as soon as he thought it, he would not last one day [without breaking the command]. This is because we have more respect for the thoughts of others about us than for our own thoughts of ourselves. Marcus Aurelius, Meditations, Book XII Chapter IV*