Based on my experience in Amway, my blogging experience, and observation of other people who give financial advice such as real estate gurus who teach you to buy property with no money down, or others such as Robert Kiyosaki for that matter, all show testimonials of sucessful people. Obviously they do not show you the vast majority of people who try their systems and fail. I don't believe any of these systems have a bonafide unbiased record of success. It is why they all have disclaimers about success being rare or unique.
It is my informed opinion that whether it is Amway, WWDB, BWW, N21, real estate or the cashflow business, the vast majority of people who try these systems do not make any kind of significant income. Sure, some do, and those are shown as the possibilities. But if you watch infomercials, you will see in small print on the bottom of the screen, "unique experience", your results may vary. Your resurts are likely to be a loss. But they never tell you what's likely, only what's possible. I believe that a similar message used to be at the end of Amway diamond recordings as well.
These systems in general do not work for various reasons. Many people simply do not have the acumen to work the system. Or the system has too many variables for the system to work, or the system calls for things beyond your control. For example, success in Amway generally requires you to sponsor others, something that is beyond the control of most people. Add in the lazy and people who are hoping for a quick score and it is understandable that most will fail. But these systems are often set up where the majority simply cannot all succeed. Nowhere is that more true than the Amway business where the pyramidal compensation plan nearly guarantees failure for the lower level IBOs.
So what can someone do? Well, it may not be as sexy or attractive but a part time job and investing and saving might be something to think about. Even a part time business where you focus on selling products for a profit might work. It just seems prudent to avoid these "systems" as the primary beneficiary of these "systems" are the ones who directly profit from them. The IBOs simply supply the money for the tool sellers.