I haven't read it. Here's my folk tale:
Attendent: A towel Mr. Bennett? By the way, I loved your last book: 'The Restroom Attendant's Book of Virtues'
Bennett: Thanks, I'm glad you liked it. [hands attendent his towel and a twenty] Attendent: Thank you Mr. Bennett.
The moral: kiss Bennett's butt even if you haven't read the book.
I'm sure it's much better for the attendant to work at a job which pays less. It would have been much more virtuous for Bennett to ignore the attendant and not tip him.
I used to work in a casino, occasionally I worked with high rollers. Once I was tipped a large amount by one man who was winning. I didn't kiss his butt, he wasn't arrogant. I assumed then, as now, that he was a nice man who was rather well off and thought it kindly to "share" with a woman who stood on her feet all evening making $7 an hour.