No one said it's OK to rb people. But a lot are saying that those who fell victim cannot put the blame solely on the scammers.
Whatever their knowledge, part responsibility is theirs simply fir the fact that they made the choice to hand over their money. No one forced them to sign it over.
To me it sounds like you are emotionally (financially?) invested in this or close to someone who was and while that's a shame if you did indeed lose money, it was all over the Internet what this was for years after it started in Dubai. 5 minutes on Google would have prevented a world of pain for a lot of peopLe.
And you don't speak for everyone when you say that "greed is just human nature we all do it". Sorry but I'm not greedy enough to chuck all my money into some investment scheme just because all and sundry at work tell me the returns are great. No mattwr how much profit mo ey would help my life and that of my family. Speak for yourself.