Richard Driehaus

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Richard Driehaus

Age: 70

Occupation: Chairman, Driehaus Capital Management

His genius for investments propels a firm that handles $8.4 billion in assets. His passion for fine art fuels a River North museum. And last February, his loyalty to DePaul (his alma mater) landed its business school $30 million.

Photograph: CHRIS WALKER/CHICAGO TRIBUNE