Driving a car makes you more likely to kill or injure somebody than walking or staying home. Is it immoral for anybody to drive a car at all?

We all take on culpability for certain harms to others. It’s just a question of what as a society we are willing to accept.

I don’t think this is an issue of society “overlooking” the morality of this specifically. It’s just that people have a lot of problems to worry about, and the crash safety of large vehicles isn’t high on the list.