Man on the Moon
It went back to the motivation of the people who built them, tested them, and flew them. It showed what can happen when people believe that the thing they are working on is the most important thing they will do in their lives, and they don’t want to be responsible for screwing it up.
Given the enormity of the challenge, all the moving parts, and the technology of the time — how the people of the Apollo missions succeeded in putting men on the moon with relatively few errors.
Andrew Chaiken, A Man on the Moon: The Voyages of the Apollo Astronauts.