I don't think that's a fair comparison. Napster and all the early music apps were basically a form of stealing. No one got money off downloads. It wasn't a sustainable model for the music industry.
Uber has made the market more efficient. If anything, it's making the industry more sustainable.
Mike Munger suggests that (http://www.econtalk.org/archives/2014/07/michael_munger.html) by allowing Uber/Lyft the local government is committing a regulatory takings by devalueing the existing medallions. So not stealing, but not straight forward competition either.
Uber has made the market more efficient. If anything, it's making the industry more sustainable.