There maybe a few people with principles who stick with them.
The majority will happily shove who ever they are told to in a gas chamber.
What I am saying is that the conformists don't drive the culture, they're just a blunt weapon of whoever is driving the culture. That weapon can be turned toward gay rights or toward burning people at the stake, but what changes a culture are the individuals with either a conscience or the individuals with wicked plans. Both of which exist outside the mainstream in any time and place.
Maybe another way of saying this is that I think most people are capable of murder and most people are capable of empathy (and therefore trauma) with someone being tortured, but primarily they're concerned with being a good guy. What throws the arc of history towards a higher morality is that maybe >0% of people naturally need to perceive themselves as "good" by defending life and the dignity and humanity of other people, to the extent that needing to be a good person overrides their cultural programming. And those are not the only people who change a culture, but 51% of the time they change it for the better instead of worse.
That's just my view on it.