The one thing I have learned as a CEO is that leadership at various levels is vastly different. When I was leading a function or a business there were certain demands and requirements to be a leader. As you move up the organization the requirements for leading that organization don't grow vertically they grow exponentially.
I don't think I was funny until college. I lived with some Harvard MD/PhD students - they were so smart and what I contributed to the house was I was the funny one.