[johannes1234321]

> A lot of people may have died from many of these early tests, but so many people were dying it didn't quite matter.

This is the old ethics question: There is a highjacked planebfull of passengers flying towards a football stadium. Should it be shut down?

Many contemporary societies lean towards not shooting as you can't compare deaths.

Regarding vaccines the current approach is to first try it out on animals and then do controlled clinical studies with healthy test subjects etc. Still some people do suffer from those for the greater good.