Growing up, I thought successful leaders were supposed to figure out all the answers on their own. Being smart — and making sure everyone else knew it — seemed to be their most striking attribute. The best schools were supposed to lead to the best jobs, which produced the best leaders. Power, fame, glory, and money were the measure of professional success. Early in my career, prominent business leaders like GE’s Jack Welch were revered for their intellect, strategic sense, and hard-charging style. They were considered infallible geniuses, inspiring a quasi-cult following.