Why do you wish that people would change their consuming behavior and not their producing behavior? I think it makes more sense to improve the tools/standards for infographic creation (as you mentioned, there is value there) than it does to ask everybody to become a better consumer.
In any case, I feel like these kinds of reactions happen with the advent of every new communications "technology." When the masses get some new tool in their hand they overwhelmingly produce a bunch of shit. After the dust settles some small percentage of those people rise to the top by creating quality which is then happily consumed by everyone.
For me the best example is looking at the historical reactions to the printing press. At that time the only books were hand scribed by monks and they were all religious texts of high quality. When the printing press came out many people were upset that books would ruin education for everyone because so much crap would be printed. We all know how that turned out: a lot of crap WAS printed, but tell me the printing press was a bad idea. Now I'm not saying infographics are the next book, but they are a new communication medium.