"Let us not become conceited, provoking and envying each other" - Galatians 5:26.
Leaders are often in front of others because they are charismatic, dynamic, intelligent, visionary, and/or skilled. They also often have some measure of success due to their strong ego drive to get things done, achieve, and excel. A problem doesn't arise when leaders use their ego to get the job done. The problem comes in when leaders become egotistical, insisting on getting the credit for everything, believing their own "press clippings" that they are as good as others say or they think they are. When that happens, leaders resent or envy anyone else's success and demand that they be the center of attention in all things and receive the credit for all things done well.
LEADERSHIP STEP: Your transition from ego to egocentric can be subtle but painful for those around you and dangerous for you. Your Step today is to take measures to keep this from happening: 1) surround yourself with people who will tell you the truth you need and not want to hear; 2) celebrate the success of others; 3) mentor others so they can excel and thrive; 4) serve others' needs; and 5) divest yourself of all privileges you get simply because you are the leader.