Well if it was a hacking incident, I wouldn't call the investors greedy. After all if they have their money in a legit project or exchange and that got hacked, you can't say that they were asking for it. Think of depositors in a bank that went under.
The scams though, they are partly at fault. This for example is a typical get-rich-quickly scheme that should have raised red flags for any sane person.
My country is no stranger to huge Ponzis exploding every 5 years or so you kinda wonder why they never learn.
The downside is that now scammers have enough money to star far more elaborate ICOs that would attract more people.
With a few millions you could buy enough advertising to fool an entire country.
Yes, get gullible people as your front, get celeb endorsers and then disappear without a trace.