I have been asked before if I wanted to join certain multi-level marketing companies. You've seen them before -- they're usually selling some kind of health products. They thrive on their distributors getting more distributors, who get more distributors (picture a pyramid structure).
The problem with these companies, is that it's really hard to make money if you're a distributor. They target stay at home moms wanting to make a little extra dough by promising them "You can work from home in your pjs!" But the employees have to spend a lot of upfront money buying the products. Then there is a surplus of all these products (that not many people want to buy anyway) and WAY too many distributors for them! Because remember, the more people you recruit to sell them, the more money you allegedly make.
So who is making the money? Only the people at the very top! They live ridiculous lifestyles and are treated like cult members at the conventions. I think the whole thing is sad and I agree with John Oliver here by saying #thisisapyramidscheme.