First, you're talking to beastie, not marg.
Sorry
In regards to your question - I don't know the answer to that.
I don't know if there is an answer, but I more or less agree with most of what you say, One thing I disagree with is:
The reason why I think we're better off sticking to religious examples is due to the powerful emotional impact religious belief has on the human mind, and our human tendency to "think about" religion in a different way than we "think about" financial investments.
I believe this is true but I also believe that Joseph Smith con for the very most part had nothing to do with religion, in a religious sense ( if that makes sense), religion was just the con (prop) that worked. Religion is certainly in the equation but a con man is a con man no matter what the con is, Peter Popoff is the perfect example, if he wasn't selling religion it would the Brooklyn Bridge. So I "think" what I am saying is that to get to what Joseph Smith was all about, all aspects of a con man have to be taken into consideration. Among items, but not limited to, that need to be taken into the mix are:
* Religion
* Greed
* Power
* Sex
* Ego and self esteem
Mark