Since I don't buy rock or pop music, I don't encounter the problem. But I can tell you that if the public didn't prefer highly compressed recordings, then there wouldn't be any highly compressed recordings. The record companies are businesses and they will provide what people want to buy.
Remember, most music isn't heard on a good quality audio system. Most of it is heard in car stereos and ipods. Loudness is probably a better choice than accurate in those situations. I doubt the campaign will help at all. You would do better to try to change people's preferences or get them interested in listening to better quality playback equipment. It's always tough to be in the minority.