In most of our locations in these times, the idea of human lives all being precious doesn't get challenged. Because there is no reason to challenge it. The majority of people can live their lives without ever being in a situation where murdering or not murdering someone is a tough choice, outside of arguably abortion, where we are more than happy to kill off a fetus.
But you put some people in some more stressful situations. Like a nazi germany, or a drug cartel, or large swaths of history, when there is a lot to be gained and lost based on your adherence to the idea, the outcome is different.
Just like everyone has pet dogs who are 'part of the family'. But the apocalypse comes, and everybody starts starving, a lot of those pet dogs are going to turn into lunch. But because the idea of treating them as part of the family isn't challenged by anything.
Essentially we live in a super duper easy time to be alive, and our perspective from this bubble is pretty naive.
But you put some people in some more stressful situations. Like a nazi germany, or a drug cartel, or large swaths of history, when there is a lot to be gained and lost based on your adherence to the idea, the outcome is different.
Just like everyone has pet dogs who are 'part of the family'. But the apocalypse comes, and everybody starts starving, a lot of those pet dogs are going to turn into lunch. But because the idea of treating them as part of the family isn't challenged by anything.
Essentially we live in a super duper easy time to be alive, and our perspective from this bubble is pretty naive.