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.