Would you believe me and would you immediately start following the advice if I told you that the key to a healthy life is "Surround yourself with meaningful relationships, sleep well, eat well, exercise, don't drink alcohol, and don't smoke"?
I don't know you but there's a good chance that you're not doing all of those things. There's also a good chance that you will agree with the above advice. There's a small chance that simply hearing those condensed words will change your behavior.
To change how we think and act we need good stories. This is what books are, including these business books. Good stories that take a simple idea and wrap it in anecdotes, justification, shock value, and entertainment so that they stick in your head and perhaps convince you to act in a certain way, at least sometimes.