Entrepreneur and TV personality Mark Cuban is one of the most visible businessmen in America (present occupant of the Oval Office aside) – though whether his reputation is warranted or not is open to debate. LIke Trump, he is a master of self-promotion – he authored a popular business book – the aptly titled “How To Win At The Sport Of Business” (Cuban owns the Dallas Mavericks) – and is one of the hosts on a popular network reality TV show, “Shark Tank.”