I think that's a misunderstanding of the intent. Obviously having a miserable job will make you miserable. But not everyone has to have a job that is their life's great passion. It's OK to have a job that just pays the bills. It's OK to not care about your work.
That's the part that CEOs hate to hear. Capitalism wants everyone to believe that their work has to define them, has to be the most important thing they do. Because if you get people to believe that then 1) that depresses wages for the "meaningful" jobs by creating more competition, and 2) it sells the lie that you have to go above and beyond because if you're not treating your job as a calling then you're failing at life.
It's OK to clock out on time. It's OK to put in the minimum effort required. It's OK to care about your work life balance. And it's OK to find a job that just pays the bills and doesn't stress you out.