To be fair though Uber did sort of save the day. Transportation is nothing like it was 15 years ago. Drinking and driving is down, I can actually get a ride with a GPS enabled app, I don't have to fight taxi drivers to pay with a card every trip...

I imagine self-driving cars will alter society for the better even more.

iPads in schools may be a good example of what you're talking about but Uber and self-driving cars actually did (or will) enact significant societal change for the better.