As a thought, you might find Robert Cialdini's book "Influence" useful:
https://www.amazon.com/Influence-Psychology-Persuasion-Rober...
He gave a talk covering the same subject matter too, which is faster to grok if that's your kind of thing.
After reading/watching this stuff, these kind of scams become incredibly transparent. And it's fairly ugh to see fellow humans subsequently get sucked in by them.