here is also a link to a video interview of Jeff Bezos explaining that he prioritizes sleep, because at his level, quality of decisions is more important than quantity of decisions.
Read the critisim section. There is no reason to think hunter-gathers worked only 4 hours per week, unless you define work so narrowly that the majority of what they did doesn't count even though anyone who has done those tasks knows how much work they are.
What is work? Those religious services were mandatory to set the image of him as a king. The discussion around the jewels was also mandatory - again setting an image. While he had the ability to skip any of those things, not doing them sets him up as an image of a bad king and soon he will be removed.
