Photo: Ethan Miller, Getty Images Image 1of/9 CaptionClose Image 1 of 9 Phil Knight - Portland, OR areaNet worth: $25.4 billionBusiness: Nike Phil Knight - Portland, OR area Net worth: $25.4 billion Business: Nike Photo: Ethan Miller, Getty Images Image 2 of 9 Donald Bren - Los Angeles areaNet worth: $15.2 billion Business: The Irvine Company, real...