"Normal people are filmed as they take the bus, ride the subway, go on the elevator, walk through the graveyard (seriously), go shopping, so why should a rich person who can afford a cab be granted an exclusive right to privacy which the rest of us don't have?"
What are you talking about? Normal, non-rich people totally have the same expectation of privacy when they take a cab. Would YOU be ok if your cab driver films you without any knowledge? A taxi/uber/lyft is a rented private car, it is not the same as public transportation.
usually they have signs that say so. It's illegal to not notify your passenger that they are being filmed. It's possible that this driver had signs (but no way to know from just the video).
A lot of TNC drivers have cameras pointed into the car, some (but not all) with signs indicating the passenger is being filmed. It is even more standard in real taxis. The expectation of privacy is more that such footage in any of the mentioned circumstances would never be released unless it captured someone committing a crime or something similar.
What are you talking about? Normal, non-rich people totally have the same expectation of privacy when they take a cab. Would YOU be ok if your cab driver films you without any knowledge? A taxi/uber/lyft is a rented private car, it is not the same as public transportation.