The Humpty Dumpty Leader

Have you read the story of Humpty Dumpty? The story where he fell off the wall, had great fall & all the kings horse & all the kings men couldn't put him back together again.  This may be a kids story, but it has striking similarities to leaders who have fallen from grace & lost their credibility to lead.  True leadership only works when people make the choice to follow freely. The relationship between the leader & the followers should get better as time goes on, but that only happens when the leader consistently builds their credibility. Do you have an example of a Humpty Dumpty Leader? What was the main flaw(s) that caused them to tumble down?