Isn the scam justified because it takes advantage of someones greed?
Many letters do play on greed. It’s still a crime. Other letters play on a sense of need (“your orphanage has inherited $20M!”) or charity (“help a widow!”). Others present a fake request for proposal – the “RFP” through which governments invite vendors to bid on contracts – this looks like a regular business offer. A scammer may reply to your sales ad. He has a ‘colleague’ (who supposedly owes him money) send you a phony check for way over the amount, and asks you to return the difference. You were just trying to sell a car.