Why Is It So Expensive to Save Lives?
givewell.org
givewell.org
TLDR Empowering and educating women is a key driver in this effort.
https://www.unfpa.org/press/nearly-half-all-pregnancies-are-...
Partial "death" i.e. loss of limbs, senses, cognition, muscle control, emotion (happiness) is not as easy to capture in a single statistic.
The benefits a malaria net provides goes way beyond preventing death. The vast majority of people that have malaria do not die of that disease. They only have a significantly reduced quality of life which isn't as exciting as preventing medical death even though you could make the valid argument that a life without malaria counts as a saved life.