Organic electronics is another awesome example. Twofish wants you to believe that the field died when Heeger created it, but it's the exact opposite. The discovery of the way those materials function has been the basis of tremendous amounts of research.
Saying that "once you figure out a fundamental law, you are done" reflects this absurd reductionist philosophy that our universe can be pared down to a few simple rules from which all else forms, and if we could discover those rules we'd be finished. The past 60 years of physics has been a triumph largely because that philosophy has been such a failure.