Individuals....and the rise of Chicago

Who are some of the individuals that took a major part in the rise of global Chicago (in the last 30 or so years) and the perceptions outsiders have of a thrieving, sohphisticated city? Would you include Richard M. Daley Orprah Winphrey Michael Jordan Rich Melman Arhtur Rubloff (for the Mag Mile) Jay Pritzker Harold Washington>