I see no point in making this a numbers game. (Like, I was supposed to say "five" or something?)

Let's make it more of a category thing: when AI shows itself responsible for a new category of life-saving technique, like a cure for cancer or Alzheimer's, then I'd have to reconsider.

(And even then, it will be balanced against rising sea levels, extinctions, and other energy use effects.)

How many lives have been saved by AI? How many lives have been lost because of it?