Most of your feelings aren't rational conclusions based on sound analytical reasoning, and if your day-to-day is just making widgets for other widgets, you probably aren't often forced to update them.
If you look at us biologically speaking, we are herding creatures.
That means the majority will go along with what the leaders want.
While the Milgram experiment was skewed, the reality is most people will shock you to death just because an authority told them so. And if you ask them at the end if what they did was right, they will say yes, or they wouldn't have done it.
Being a decent of German Jews, I normally think: "Who of the people that I know wouldn't turn me in."
The sad reality: very few. It's by design. Herds don't work when everyone is trying to go their own way. There will always be individuals who eschew herd. Biologically, they generally die, but a few find new environments or start their own new herds. Of course the herd problem then starts over.
Most of the responses I'm seeing here are about money and while that is probably a factor at some level, I like to believe that people need to have a lot of pressure put on them by society for other reasons to give up their personal morals in exchange for money.
"No one is the villain in their own story".