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.
Mind you I've always been a very off-message type of fat broad one who gladly admits she reached the size she is now solely through lack of discipline and love of pleasure and who rather despises people (except those with proven medical conditions) who pretend that it is generally otherwise.