My biggest beef with the whole self-driving thing is that we should NOT have started with cars.
Why not a self-driving cart that takes you around the store? Or a self-driving golf buggy? Or a self-driving airport passenger carrier to get you to your gate? Or even those little "trains" that some shopping centres have for the kids which are just wheeled vehicles?
THAT'S where we should have begun. A limited controlled environment, low-speeds, little impact, useful, even a pay-for service (do you want to walk to your gate, or get on a little cart that'll drive you there for $1?), and iron out all the myriad problems with driving in close proximity to pedestrians, etc. in a safe and controlled environment.
The fact that those things AREN'T mature technologies tells me that self-driving car people have NO INTEREST in our safety. None whatsoever. If they did, they would have started small and built up.
Hell, even a self-driving bus makes far more sense, even if it goes slower. They often already have their own dedicated lanes!
What they did is exactly what you describe in your last sentence. Think about the quickest way to profitability and screw the testing, research, consequences, even the laws in some cases.