It fostered a curiosity in me about the nature of humanity, and a lingering awareness that history is written by the survivors.
Innocence is often extinguished not by evil intent, but by efficiency.
I once heard a talk by someone involved in microfinance/impact investing in poor countries. Through her work she met many people at all levels of government in the places she worked.
One thing that stuck with me was her comment that while everyone is capable of greatness and kindness, they also have the capability of becoming a "monster."
She cited the experience of one of her Rwandan contacts, who later became the Minister of Justice and was one of the senior government officials responsible for driving the genocide of hundreds of thousands of members of the Tutsi minority in the mid-1990s.
https://humanrights.ca/story/what-led-genocide-against-tutsi...
The psychopaths in power want to remove the moral element because it makes things unpredictable for them. They prefer everything to be kept stable and under control through blackmail and other forms of coercive leverage.
Something else I've found is that, as you get closer to power, people become much 'nicer' (superficially) but they are definitely more evil in reality if you look at their actions. It's like they make up for their evil deeds by being extra nice to people in person. Nowadays, when I meet people who are too friendly with their words, I immediately feel skeptical; I don't trust them.