Even without legitimate power, you can be an effective leader. Being a reliable source of information generates expert power, which can be very compelling to others. Garnering others’ respect and admiration through good work, honesty, kindness, humility, and generosity is called referent power. As long as referent leaders do not exploit their power, others eagerly follow their lead.A combination of expert and referent power results in idealized influence, which is particularly potent for leading change.