Mike,
I like the flow of these posts on this topic. I'd add one more as a twist on #1. We can build or strengthen our credibility by repairing trust when broken. It won't do any good for anyone involved or remotely impacted if broken trust is left alone. Rebuilding trust can be as valuable, if not more, in developing leaders. It teaches how to navigate complicated, confrontational interactions. It teaches humility. It teaches the importance of rising above destructive or dysfunctional behavior in ways that support the business's success and people's too.

Nice list.