I think this idea generally doesn't bear out, at least as described in the book. For the most part, the kinds of jobs that are potentially actually mostly bullshit, are generally not considered it by those who do them, while those that he would characterise as just "shit jobs" will generally have a high percentage of percieved bullshit by those who work them.

I am amenable to the idea that there is a lot of wasted pointless work, but not to the idea that there's some kayfabe arrangement where everyone involved thinks it's pointless but pretends otherwise, I think generally most people around such work have actually convinced themselves it's important.

Read the article. The book is just a long boring elongation without new content.