Under capitalism, a lot of the time, highly dangerous jobs are also highly paid. Kind of a balance that the individual decides to engage with. Same idea behind getting an advanced degree in STEM or law. I think of my job by example, I’m a power plant operator at a large combined cycle plant. No fucking shot I’d be doing this if the pay wasn’t good. I’m around explosive and deadly hot shit all day.
Why would anybody need to work 40 hours if it wasn’t for someone else’s profit?
24/7 organizations will exist regardless of profit like mine, electricity, Healthcare and hell even production environments for needed goods will have to operate.
Any organisation that needs to operate 24/7 with a work week of less than 40 hours would need to have more workers than they do with a 40 hour work week, simple as that. To oversimplify: we arrived at the 40 hour work week when business owners wanted people to work more and people rioted and formed unions to push back over 100 years ago. In other words, it’s arbitrarily set. We could organize society around a different length work week if we changed our goals from shareholder profit to better quality of life for all. Maybe being a lumbejack or alaskan fisherman wouldn’t be so bad if you only had to do it once a week or didn’t have to go out in storms and you still had food, shelter, and leisure activities provided by society.