There were several MLMs that various JWs were promoting within the congregation here in CT. Almost all of them folded pretty quickly, but not before the original promoter made some money off the "friends".
One elder (my bookstudy conductor for a time) was quite aggressive about it... even came to talk with me at work. Unbelievable. Sure never came to my office to make an appointment to talk to me about spiritual things, but to make a buck, he had no problem encroaching on my father's time by interrupting my day for his business.
I know he justified doing this with a serious of "reasons": a) he was helping lowly ones in the congregation, ones who could probably use extra money, by introducing them to this exciting new business prospect. b) in my case, he justified calling on me at work by claiming I could put some of the merchandise from the catalogs right on our store shelves...the first and only time the actual products you supposedly wanted to sell in this MLM were ever highlighted. c) He felt that some might be able to quit their jobs and pioneer if they built a good enough network, thereby getting checks off of other people's sales and networks without doing much work at all. The dream of all witnesses.
I'm sure this happens in other churches too, but I get so indignant about it because I believed that JWs were different, that they really had the morals they droaned on about, and really cared about their fellow witnesses. Never pleasant to realize you've been duped.