demetris, that's exactly what we improved with a recent algorithm change: http://www.mattcutts.com/blog/algorithm-change-launched/ . As you point out, that was a more straightforward change, and that's why we were able to launch that one first.

That said, if you wanted to share some examples where you're seeing copies rank higher than originals I'm happy to pass that on to the right folks. In fact, some of the right folks are already on this thread. :)