On the other hand, self driving cars don't get mad at other drivers making a mistake and try to get back at them, causing all kinds of dangerous situations.
Oh, yeah? Says who . . . ? An autonomous vehicle might be programmed to drive "aggressively" to get through traffic jams faster. They'll give the feature some innocuous title like, "affirmative driving".
What you'll end up with is autonomous vehicles playing "chicken" with each other. An autonomous vehicle will not win any races by driving cautiously.
Anyway, the point is moot, because Über is not at fault in the same way that Über is not a taxi company. Über is a newfangled economy company, using a smartphone app and the Internet, so outdated terms like "fault" do not apply to it.