How Do You Define Leadership?

In researching questions about leadership, I came across a fascinating article by Forbes where some of the most successful people in our generation have defined their version of leadership.  https://www.forbes.com/sites/kevinkruse/2013/04/09/what-is-leadership/#361e46115b90

At the core of these statements is that leadership isn’t something that we can all equally define and agree to.  It’s a moving target that is appreciated by certain people at certain times depending on what they respect and value.  Can you ever really win with everyone as a leader?  How do you incorporate cultural humility in a work environment that is globally diverse?  Is there a guide on how to handle difficult situations across multiple generations AND multiple groups?  Is there a scale in which to define what is right and what is the wrong way to discuss an issue with a colleague?  How do we find these answers?