What about animal testing? Most people think torturing animals is wrong, but are ok with it when it is necessary to save humans. In fact I can think of many ex

What about animal testing? Most people think torturing animals is wrong, but are ok with it when it is necessary to save humans. In fact I can think of many examples where something is a crime unless it is necessary for survival. In law there is even a concept of "necessity" (https://en.wikipedia.org/wiki/Necessity https://en.wikipedia.org/wiki/Necessity) that says it's ok to commit some crimes in some circumstances when it is necessary, e.g. self defense.