How a leader makes amends is a reflection of character. In my experience I have seen examples of managers who have verbally abused employees and then turn around and act as if nothing has happened. But it has. A humble leader would have apologized, asked for understanding and then made amends.
Conversely I have seen leaders whose teams have screwed up royally work to help the team recover by investing themselves in the recovery process. The difference between the two is accountability. The bully holds others accountable; the leader holds himself accountable for helping others.