Hang on... people rent cars to drive for Uber? How can the economics come even remotely close to working out? I was under the strong impression that Uber drive

Hang on... people rent cars to drive for Uber? How can the economics come even remotely close to working out? I was under the strong impression that Uber drivers make dirt and that it's difficult to do much more than break even, assuming you own/lease your own car. Either Hertz is insanely cheap or Uber pays more than I thought.