I completely reject the idea that working adults need to be treated like infants or worse and not told the realities, harsh or not, about the world of work. Keeping people in the dark and filling them with stories that are either mostly fabricated, unusually rare, or both, doesn't do anyone any good. It is one of the reasons that workplaces and careers remain in such dire straits.
People who don't have as much power as they would like often begin by attributing their difficulties to the environment - competitors, bosses, economic circumstances, and so forth. But in reality people are customarily their own biggest impediment to being as powerful as they would like.
Almost no one as I think most leadership books are a joke. They are, as I note in Leadership BS, frequently based on wishes and hopes rather than reality, on inspiring stories rather than systematic social science, and on "oughts" rather than "is."
People tell me the Netflix series, House of Cards, is sort of like my class come to life. The movie Margin Call portrays the realities of hierarchical relationships and rivalries beautifully, and how people respond when under pressure. Gandhi and Long Walk to Freedom both have the virtue of presenting larger-than-life figures in a more realistic way, showing their flaws and contradictions - their humanity - in a way that is very helpful.