"He'd work all night, " says Amie Witton, who joined in 1995 and is now his p.r. chief.

FORBES: Fashion's Hard Case

Driven by (I)nnovation, (D)evelopment and (P)rogress, the Chicago and New York-based foundation is focused on mobilizing resources to improve the quality of life for those in need.

FORBES: Occupy Change: Business Doing Business To Save the World