As noted above, I found it more enlightening about people down the SES from me than those above - probably because it was easier for me to understand at a practical level what they would have change to succeed in my world than what I would have to change to succeed in the role of a F500 CEO or their spouse. I’ve known - casually - several successful CEOs of mid-size companies, and after careful study I’m still pretty much clueless as to the personal or intellectual factors that make them .001% outliers professionally.
You and me both, or I would be one...