Robert Shireman, 51
On a crusade since: 1991
Day job: Director of California Competes, a project to improve higher education
Achievement: Making loans less burdensome for college students
Why he's a hero: In 1991, as a Senate staffer, Shireman sold Congress on federal direct loans, which eliminated middlemen and led to lower rates. Years later the Californian came back to D.C. to fight for an income-based repayment system that cut many students' monthly loan costs. And parents can also thank him for simplifying financial aid by getting the IRS to prefill applications from tax forms.
Quote: "If we can get better at judging education quality, our money will be better spent."
NEXT: Shining a spotlight on college costs