I find Leonard Bernstein's insight amazing...
With a simple quote he defines a key to happiness, for you and your friends, family, supporters, and colleagues. The goal is to help those around you. Building upon others suggestions is a path to success.
Imaging a sports team, with a star player, who insists all the attention. I've heard examples of teams failing because there was dissent in the locker room. You've probably observed it first hand. We all have had difficulty working with people. The question is how to build upon their ideas. Doing it gains buy-in and allows others to contribute.
We all have opportunity to lead. There's a Military adage about leading, following, or getting out of the way. This is self centered. It's a leader demanding accountability. True leaders do all three...