Back in the 19th century when unions were powerful and innovative, a lot of people had jobs where they had to sit and do repetitive tasks in a room all day. A lot of it was handwork that didn't have big loud machines.

So one of the demands made by workers in such situations was that the employer would pay someone to come in and provide entertainment such as reading a book or giving talks on subjects of interest. The book or lecturer of course being selected by the workers via the democratic process of the union. And then of course the workers became way more educated because they suddenly had 8-12 hours daily to read books together. Since knowledge is power, the workers became stronger and more decisive in their collective actions.

When you are listening to audiobook at work you can know you are in a long tradition of workers exercising power over their job conditions. Although now it is individualized in the implementation. The desire to have your mind even though the job has your body and some concentration is universal.