Louis Vuitton, Harley Davidson, etc do not give people the illusion of owning their business and do not encourage them to stockpile garbage products in their garage to keep their "status" in their "business". They do not encourage people to con their friends & family into the scam either.

Furthermore, most of these luxury goods have actual value. Even if you are stupid enough to go into tons of debt and fill your garage with Harleys, there will be plenty of buyers who will be happy to take it from you at a small loss. In comparison, nobody will buy a garage full of Herbalife - the cost of shipping would be more expensive than the market value of the product itself.