That Andries van Tonder guy and some people who were at the Stellenbosch shows that neither age nor being comfortably off satisfies greed. These are people who don't need to become advocates of and recruiters for schemes that will ultimately cause loss to the people whom they draw into the cesspool. Mostly they should be able to live comfortably, investing in stocks and shares or if they like a bit of a thrill, trading bitcoin themselves. Because we see the same people coming up in scam after scam, they clearly didn't lose everything they had. As others have said, they probably know all the signs and KNOW that they can get out with other peoples' investments with no risk. Hell, in MTI they only have to risk $100 because idiots will do all the rest as their downlines.
They really are lower than any desperado who robs a bank or takes a risk of getting shot during a cash-in-transit heist. At least these types of criminal put their lives on the line.
Not being particularly religious myself, I can't even take comfort in believing that JS, Rich, Cheri et al will end in Hell so I have to hope that retribution comes during this lifetime for them.