Part of the promise of self-driving cars is that they will be exceptionally safe. As Toyota puts it, vehicles should be "incapable of causing an accident." However, even if a car doesn’t directly cause accidents, it might create minor hazards that make it more likely that others will cause an accident.
Why it matters: There’s more to being a good driver than never being at fault for an accident. AVs should not just “do no harm”; they should “do good” by making the road a safer environment for all road users.