Who is Howard Parker from Confessions of an Economic Hit Man and what is their importance?

Howard is a man that John meets on his first trip to Indonesia. He is the electricity specialist and was hired to forecast the growth that would take place after implementing a new power system in Indonesia. He is an honest man, and doesn't even try to fudge the numbers the way MAIN wants him to. He quits and tells John that it isn't too late for him to get out, too. Howard tells John that everyone in MAIN is just out to make money, regardless of the lives they are hurting by indebting nations. He is the only honest man that John ever meets in his line of work and the only one bold enough to stand up against MAIN.