When people make money, it's because they're smarter than the average bear, they called it right, they worked hard finding that investment etc.
When they lose money, it's all a scam, they were cheated, someone fooled them.
I don't know why we, as a society, listen to whining like this. But people lap it up. We should just require a big red disclaimer saying "your money is at risk" and let people do what they want (and I'd do the same for shares and bonds and gold and anything else really).