Leaders possess disproportionate leverage to advance a positive agenda or to impede progress in their corporations, communities, churches, and nations. For Good or for Bad President Bashar al-Assad, an egomaniacal leader with access to chemical weapons – wields far more power than a volunteer group that works tirelessly to lift up oppressed Syrian women. Kim Jong-un, North Korea’s reckless chairman who inherited his father’s unbridled power, holds nations in anxious limbo while a faith-based team in Pyongyang seeks peace without much notice. Nelson Mandela’s singular influence released a nation from oppression. And Steve Jobs’ foresight. changed the way the whole world listens to music. Histories of human societies chronicle consistent narratives of a few leaders whose disproportionate leverage brought either harm or healing to the masses. Today billions of people’s lives and futures are in peril because of a few tyrants. And billions of others have hope because of a few influential visionaries.