I feel like Uber's biggest revenue generator would be putting a small smartboard in front of passengers and selling targeted ads.
Data isn't valuable. Using that data to create a product that people will pay for is (e.g. showing an ad to someone en route to the restaurants across the street).
Or most likely the driver will agree to put the running gadget in the glove compartment for an off-the-app tip.
"Uber needs to access your microphone to communicate with the information screen"
"I can't communicate with the information screen Dave. It's voice sounds muffled. Have you done something with it?"