I've also discovered that those individuals usually don't want to tell the downside of their lives. They seem to have a compulsive need to emphasize only their triumphs and achievements. We refer to such projects as puff books.
I wrote one such book many years ago—not aware it would be a puff book when the publishing house hired me. The author never made bad decisions, although other people did. Friends betrayed him and associates lied, but he maintained his integrity.
I finally called the editor and she told me that it was a vanity project and assumed I knew it. (I was glad that happened in the days before my name was put on the cover.)
Shortly after that project, I turned down one man, who was willing to pay me well. "I want to have a book," he said, "because I want to be somebody."
He couldn't seem to grasp that he was already somebody. To hold up a published book wouldn't change him inside. (He finally hired someone else and had the book self-published. He still wants to be somebody.)
Even though I can earn money writing for others,
I turn down the people for whom I don't want to write.