[Knufferlbert]

My sibling comments are a bit cynical. Considering the widely reported stress on health care workers during the pandemic I'd suspect that number may be higher than one would think despite the millions working on throwaway products.

Obviously, society should incentivise that those professions that are overworked and useful to society hire/train more, so they are not that overworked.

[fuzzfactor]

Well, so many life-saving physicians and other health care workers undergo periods of extreme work hours.

If they wouldn't have been capable of accomplishing so much over as short a calendar period, I would estimate higher fatalities, especially during the pandemic but also over all the other decades.

I expect there is an equation for this tragic number.

It doesn't matter how many more life-savers you deploy, simply because there will never be enough of them, things will always be better if one or more of them put in a little extra time.

Should also be equations for the positive-outcome/number-of-hours.