We are already "letting more people die" for economic reasons. We could mandate that all cars on the road should have the most modern 15+ airbag systems, but it's too costly. We could mandate that the speed limit should be 30mph and limited in hardware, but it's too costly economically, yet I don't think anyone can argue that it wouldn't save lives.

We make these exact choices all the time. I am saying we should "let more people die" now, so that we can save more later. That's not a novel concept.