1st Corinthians 1 says so many things to leaders as well as subordinates in Christian organizations. It speaks of calling and of wisdom and of foolishness and of power and of weakness and of arrogance—all of which are related to leadership and those who follow.
What makes a leader good is not that he simply rejects prevailing political approaches, speaks his mind, displays power, or brings wealth and fortune to an organization. However, what is fundamental to good leadership is someone who has skills, humility, and cares for the needs of others, particularly the vulnerable.
Nearly a year and a half ago, Anders Örtenblad reached out to me because he was interested in my doctoral research. As a result, I wrote a chapter for "The Oxford Handbook of Bad Leadership" edited by Anders. It is finally about to come out!