A lot of people are crazy, cruel and negative. They got a little too much time on their hands to discuss everybody else. I have a limited amount of energy to blow in a day. I'd rather read something that I like or watch a program I enjoy or ride my damn motorcycle or throw back a couple of shots of tequila with my friends.
No matter how good you think you are as a leader, my goodness, the people around you will have all kinds of ideas for how you can get better. So for me, the most fundamental thing about leadership is to have the humility to continue to get feedback and to try to get better - because your job is to try to help everybody else get better.