17. Steve Jobs
Apple CEO Steve Jobs speaks during an Apple Special event to unveil the new iPad 2 at the Yerba Buena Center for the Arts on March 2, 2011 in San Francisco, California. In March the Apple founder made a surprise appearance at the unveiling of his iPad 2, after taking medical leave in January. Insanely creative Apple chief transforms a multibillion-dollar industry every few years. (Photo by Justin Sullivan/Getty Images)