I think part of the problem is that business and investments are running on hype, investors are ready to put their money into the next big thing,they also hire the media to spread their lies and the consumer is distracted for a while. They make the average consumer believe that they need something that's not necessary. And so with the society going this way, even consumer behaviour can not truly be ascertained.

Market dynamics are supposed to be a natural phenomenon operating operating based on demand and supply, but even the forces of demand and supply can be tilted to face a particular direction because consumer behaviour can be influenced.
So I think it's a systematic wroth that needs to be cleansed. Maybe the tax system you suggest might be able to do the job, I also think consumers should understand what they really need else the system will always be against us.