I would seriously wonder how much you understand about proportions given the average nurse makes about 00.000002% of the $4.5 trillion in annual health care spending in the USA.
I also didn't say that should be the only factor. Clearly proximate responsibility for the relevant decisions should be (and already is) part of the equation.
It's okay if you are uncomfortable in morally ambiguous situations, the most moral thing to do in those circumstances is recuse yourself.