For value investors, most of what these CEOs did is not surprising. In terms of capital allocation, they bought back shares when they were cheap, sold when they were expensive, and were prudent in determining how to invest retained earnings. Within operations, they were frugal (as opposed to competitors who lived it up in fancy headquarters etc), efficient and rational. Summed together, these approaches resulted in astronomical share price gains over decades, while managements of the competition were apparently focused on growing firm size.
But where this book can be educational to the value investor is in identifying who these guys were and why they were perhaps able to avoid the "institutional imperative". Also, the book is helpful in discussing the key success factors of the industries in which some of these guys operated, and how their rational approaches allowed them to best the competition.
I was a bit hesitant to read this book because I anticipated what I wrote in the 2nd paragraph to be the case. But I'm glad I read it because I found the elements discussed in the paragraph above to be useful to me. If you're in that category, enjoy!
I can't wait to see the movie as well (trailer below). Who knew so many of these CEOs knew each other as teenagers?!