These books are very important because they help us understand the mindset of the psychopath/sociopath.
Good people never understand how the psychopath brain works. They think everyone is good like them and evil acts are just a “mistake”.
No, they are not. The psychopath brain thinks and likes evil. They have no feelings for love, affection, empathy, sympathy or remorse. They are only happiest when then engage in cruelty, torture, bullying, humiliation, war, violence, theft, etc.
So what’s a good person to do? Start reading books on corruption. Find out how they think, what makes them tick and with knowledge you can feel empowered, fight and overcome.