
"This book exposes our unconscious selfish motives, those we're reluctant to discuss or even think about. These motives drive our body language, laughter, and conversation, as well as venerated institutions like art, school, charity, medicine, politics, and religion"
- Blitzed: Drugs in the Third Reich by Norman Ohler
- The Elephant in the Brain by Kevin Simler and Robin Hanson
The Elephant in the Brain: Hidden Motives in Everyday Life
https://www.goodreads.com/book/show/28820444-the-elephant-in...
The Enigma of Reason
The Problem of Political Authority
The Elephant in the Brain: Hidden Motives in Everyday Life would be my go-to. It's all about how people's motives are a lot more self-serving than you might think, including your own.
If you liked that, and then really want to go off the deep end, try The Enigma of Reason.