There is a level of accepted risk tolerance in our choosing to let people drive cars. Accidents happen. People will get hurt. People will die. And you know what. Yes. Yes it is ok. The benefits outweigh the cons by multiple orders of magnitude (not that there is a unit of measurement).
You could ruin lives and throw drivers in jail but that just hurts society even more (imo). Ruins lives, costs the state money, and doesn't even change behavior. Accidents are accidents after all. You either have cars and accept that there will be accidents or you get rid of cars [2].
So fuck it. Yes. Yes it is ok. Accidents happen. We should, of course, work diligently to reduce risk and improve safety. And we do. But accidents will happen and people will die.
[1] https://answers.yahoo.com/question/index?qid=20100109053104A... [2] Or maybe get rid of human controlled cars. Cyclists raise your hand if you want to ride against the risk profile of a driverless car!