Neil Remington Abramson commented as follows (reproduced with permission):
Inauthenticity (or bad faith, as Sartre calls it) is doing what others say or expect hoping to be rewarded and/or not punished. The classic “I was only following orders” is the exemplar. You deceive yourself into doing what you believe you want but truly you are just trying to be accepted by those in authority.
Authenticity is doing what you truly value without thought of reward or fear of punishment. Often it turns out there is no punishment, except the fear that had held you in check.