Yes, that's the thing, a lot of people died of asbestos, but more people would likely have frozen or burned to death without it.. It's good that we're getting rid of it, because we now have the technology to replace almost all of its uses with sufficiently effective and less dangerous alternatives.

It does not mean that its use was a mistake, but it's continued use would be, as we have an intrinsic responsibility to always seek safer alternatives when we discover the negative effects-