@kingrollo
That, as you rightly say, is one of the basic principles of medicine.
But, I know I tread on very dangerous ground here, the pandemic has highlighted this as an issue:
Is it right to value all lives equally?
Should a criterion be Years of Life lost?
I saw (sorry, can't find the article now) an article comparing the Pandemic spend on saving a year of life to the Health care planning numbers used. The disparity was orders of magnitude.
This snippet from a 2018 article is pertinent.
https://www.healthknowledge.org.uk/...earch-methods/1a-epidemiology/years-lost-life
and this WHO paper makes the concept real,
The rationale for use Years of life are lost (YLL) take into account the age at which deaths occur by giving greater weight to deaths at younger age and lower weight to deaths at older age. The years of life lost (percentage of total) indicator measures the YLL due to a cause as a proportion of the total YLL lost in the population due to premature mortality.
https://www.who.int/whosis/whostat2006YearsOfLifeLost.pdf?ua=1
So, the question that Accy puts rather crudely is actually moot:
How to balance the direct loss of life in the pandemic against indirect loss of life resulting from pandemic control measures.
Or, closer to the basic principle you posited:
Two patients arrive, with an identical short term fatal short term condition. For which you have one life saving "dose".
Who gets it the 25-year-old or the 95-year-old?
If the 95-year-old arrives 5 minutes before the 25-year-old do you rescind the instruction to give the dose to the 95-year-old?
Tough, tough questions.