What do I gain by sharing my salary with others? What does it cost me? For me, there are moral answers, economical ones as well as hedonistic ones to these ques

What do I gain by sharing my salary with others? What does it cost me? For me, there are moral answers, economical ones as well as hedonistic ones to these questions. But I know this: Information is king and it helps to be flexible (abillity to move for a job, ability to start there quickly, ability to be out of a job for weeks/months ...). I try to do this: advise colleagues that I think should earn more, what to do, what expectations are ok, without destroying team morale and my (selfish) status (knowing that I earn top).