Fortune's annual list is filled with executives who defied expectations (buying a newspaper, leaving luxury for Apple), executed big turnarounds, and delivered stellar results for their shareholders.
CEO, MasterCard (MA, Fortune 500)
The move to cashless and mobile transactions is benefiting Banga's payments company; some think the stock, now at about $735 a share, could go to $1,000.
NEXT: Howard Schultz
What the two have in common is a rare form of design thinking powered by unfettered conviction.