It’s amazing how contrived and detached from reality the counterexamples for utilitarianism have to be able to attack even the most basic forms of it. It really makes you think that utilitarianism is a solid principle.
This is known as a "reductio ad absurdum" argument, and isn't contrived at all. It's easy to make a general rule that applies in the majority of cases. To test whether a general rule has flaws, and to improve upon a general rule, it must be tested by applying it to edge cases. The same way that you test a datetime library by picking potential edge cases (e.g. Leap Day, dates before 1970, dates between Feb. 1-13 in 19…
Or, even better, what if distribution of this life saving cure was done based on the deontological concept of fairness? Surely, this wouldn't result in limited and highly demanded vaccines being literally thrown away[1] in the name of equity and where vaccination companies wouldn't need to seek approval for something as simple as increasing doses of vaccines in vials. [2]
You know, just all theoretically, since it would be a terrible shame if any of these things happened in the real world, since this is just one specific scenario and I'm sure I can make up various [3] other [4] ways [5] in which not carefully evaluating the consequences of moral actions would turn out poorly, but hey!
I'm sure glad that utilitarianism isn't being entertained more on the margin, since we already live in the best of all possible moral universes.
(Footnote, I'm not going to justify these citations within this post, because it's pithier this way. I recognize this is not being fully honest and transparent, but I'd be happy to fully defend the inclusion of any these, if necessary)
[0] https://www.cdc.gov/mmwr/volumes/70/wr/mm7014e1.htm
[1] https://worksinprogress.co/issue/the-story-of-vaccinateca ctrl f "On being legally forbidden to administer lifesaving healthcare"
[2] https://www.businessinsider.com/moderna-asks-fda-approve-mor...
[3] https://news.climate.columbia.edu/2010/07/01/the-playpump-wh...
[4] https://papers.ssrn.com/sol3/papers.cfm?abstract_id=2641547
[5] https://papers.ssrn.com/sol3/papers.cfm?abstract_id=983649