It is great point Mary,
Keeping promises is one of good qualities of leaders. It is very important to look at ourselves before anyone else. When we think of leadership the first thing comes to our mind is people management but we should start doing that by self-leadership and keeping our own promises that no one knows except ourselves. I believe it is leadership ethics to be honest to ourselves as well as others. The holy Bible says “But whoever keeps his word, in him truly the love of God is perfected. By this we may know that we are in him.” (1 John 2:5) I don’t know how we often break our own words and expect others to keep theirs. For good leaders who lead by example keeping their promises to themselves is one way of being model to their followers.