In part I do agree with you... people that fall for this kind of cheap trick are too blinded by greed to even think about what they are doing... this is a children trick... but I also do not see how you can conclude that these are all well-established greedy people, maybe there are also innocents in the mist and this is why we should not laugh at others disgrace
Soklmetimes it coild also be a desperate move for them to fall for this trap. This because most of us want to try our luck and that even compromising the safety of our money when it comes to investment. There are many who would like to try their luck just in case earning fast and then pulling out usually the plan. However, it seems tha really greed work and instead of some pulling out after earning, some had doubled instead for a faster earning to which then if not lucjy enough investment comprmise and organizers rum away with money. So scammers too were fast in running away the money.