Marc Benioff

Marc Benioff's head might be in the cloud, but who are we to argue? One of the brightest bulbs in the tech firmament –- he was once described (with only a tad of exaggeration) as "the fresh prince of software" -- Salesforce.com's exceptional founder is another tech billionaire with a unique fashion stamp. In this case, it’s the suit sans tie get-up. That’s a recent style and we're not quite sure about the significance. But it's cool.