In Elon's mind, he is saving many more than those that get killed. I tend to agree with Elon, but I'm not going to be one of the first to be testing this life saving tech with my eyes closed.
On the flip side talking about Waymo, I've felt for a long time if they made wider release of their tech they would help many lives. For example they said a couple of years ago, that freeway driving isn't challenging. So why not release a Waymo freeway driver to car companies? Waymo won't risk blood on their hands and they would lose millions in lawsuit if that happened, plus millions in brand reputation to Waymo and Google if that happened. Because of this we won't get Waymo soon enough and saving lives, because of such strong risk adversity.