To understand why tinnitus (and hearing loss) is so much more common than it should be in today's society, we have to look at the human ear in an evolutionary context. Our (inner) ear is simply not meant for the kind of noise levels that we are surrounded by everyday. There is noise when we are in the car, train, airplane; there is noise when we walk down the street, go to the shopping mall, eat at a restaurant, when we go to the fitness club, and... when we constantly listen to portable music...! Our ears were simply not meant for that kind of noise; our ears were designed to be out and about in nature. We are treating our ears like doormats.
You write "...haven't been to a concert recently" - well, human beings should not attend concerts to begin with (recently or not). Attending a concert is like "raping our ears".
I would not so much blame doctors for not being able to find a cure for tinnitus (that's not their job), but I would perhaps blame them for not raising more awareness about noise polution. I recently had a read of the EU health strategy - which you can find here:
http://ec.europa.eu/health/strategy/docs/swd_investing_in_health.pdf
Not a single mention about noise and safety levels. Instead, focus is on the usual topics such as alcohol consumption, healthy eating, smoking, and HIV & safe sex - which of course is relevant, but also what I would consider "common knowledge" - whereas noise safety is not. Soon the "iPod generation" will be 10 years old, and if a cure for tinnitus/hearing loss is not found soon, noise polution will not just be a problem for the individual, but also for society as a whole. I recall my conversations with Dr. Wilden - the famous/infamous tinnitus specialist - from last summer where he mentioned that everyday in Germany, 20-30 teenagers are getting hearing aids. One of the things I will doing once I am finished with my second round of experimental tinnitus treatment is to speak with health officials in the EU about noise polution and public awareness; even though I expect a "near cure"-result from my treatments, the focus should still be on prevention rather than "curing the disease". There are so many "quick win" steps that could be taken to prevent noise damage eg. why not make it mandatory that earplugs are handed out at concerts, for instance?