I haven’t read The Elephant in the Brain (yet), but I enjoyed Robin Hanson’s talk with Sam Harris about hidden motives:
They discuss selfishness, hypocrisy, norms and meta-norms, cheating, deception, self-deception, education, the evolutionary logic of conversation, social status, signaling and counter-signaling, common knowledge, AI, and many other topics.
I especially enjoyed the misguided questions from the audience.