You're right about the people that profit from it. In order to make money they encourage people to avoid medicines that might actually help them in favour of taking a placebo. The effects of this aren't too bad when you're talking about headaches and bruises but when the illness is more serious...
This has got to be the winner. It has been scientifically proven to be a load of crap. It's based on the idea that water has a memory. Arguing that it works is like arguing that the world is flat. It does not work. FACT!! (I normally hate posts that end FACT but this really is a fact!)