https://www.forbes.com/sites/peterhigh/2018/12/10/general-stanley-mcchrystal-separates-myth-from-reality-in-leadership/#3e3525551d73
Heroes: We wanted to cover people who society has selected as heroes, rather than those we viewed as heroes. We used Harriet Tubman, who was a hero of the abolitionist movement. Tubman represents an unlikely hero as a five-foot tall African American former slave. However, her exploits are astounding, and she is one of those characters that you become more and more in awe of as you read more about her. We paired Tubman with Zheng He, who was a Chinese admiral from the 15th century. Zheng He was castrated at age ten by the Ming Dynasty after they conquered his part of China. He then went on to become a court eunuch, a leader, and then an admiral who led treasure fleets. Much of what is said about Zheng He is lore. People say he was seven feet tall and his waist was five feet wide, which is likely apocryphal. We found him interesting because he is used in modern-day China. Xi Jinping uses him as an example when advocating for the one belt, one road concept. He says, "This is not a new look. China was doing this 600 years ago.” They have created a person whose story is not completely well known and raised him up to heroic status. We debated covering Zheng He for a long time, and I had argued for Davy Crockett partially because he was likewise raised up in people's minds;