Those are some interesting numbers at the end of that article. However, I think I might have an explanation for the discrepency.
To be scammed out of a large sum of money, you have to have accumulated a large sum of money in the first place. Perhaps what the discrepency between those two numbers (57% vs 41%) represents is the difference between a D- and an F.
"The penny stock investor may be the most dangerous creature in the investment world, at least to himself.[...]His hypocrisy becomes most apparent when he then blames his losses on the greed of others." Robert C. Dugan, Director - JRM Capital