Janet Yellen
Janet Yellen at 69 is the guardian of the US economy. She chairs the Federal Reserve and is the first woman to do so. Her chairmanship has yielded good results so far that include a reduction in overall unemployment and steady economic growth.

Koch Industries is run by two brothers Charles and David who are an 80-year-old CEO and 75 years old VP respectively. The conglomerate is the second largest company in America and the brothers together yield a worth of over $87 billion.
