Pyramid schemes, or MLM (mult-level marketing) are just not worth it. They're predatory and really gross. By the time you start making money off it you've probably pissed off your friends/family by bothering them to get them to buy shit from you and sunk a whole lot of money into the "business" itself, so it's not really profit.
The subreddit @
(you need an account to see links) linked you to is one of my favorites and while it's mocking people who are taken in by MLMs, it's also extremely informative because you'll get former people who were part of like, Airbonne or the leggings one or whatever who go there and tell about their time spent with an MLM. Most if it is insane pressure and encouraging you to reach out to friends/family/strangers alike to try and get them to buy your products and be part of your down line. My heart always breaks a little when I see a friend of mine taken in by the false promises and pretenses.