Then there are quite a few essentially workplace injured programmers who are dismissively called "burnt out". Unable to work, unable to claim workers comp.

It seems that both blue and white collar jobs have their share of workplaces where in a do-the-task-or-maybe-get-fired situation, it's up to the employee to enforce their own boundaries and decide when saying no is a safer choice for their long term physical/mental safety. (Of course, sometimes you only realise this when it's too late.)