Third, to be fully in frame requires a suitable hedgehog home.
Both Glenn and Cooper flourished in the culture of elite military pilots and NASA astronauts, wherein they could count on the people around them to be reliable, trustworthy, and highly capable. And while their work came with extreme danger, they operated within a system of competence, chock-full of checks and counterchecks, with scientists and specialist engineers and support crews all working together to accomplish a clear mission and decrease risk to the pilot or astronaut in the cockpit.