Show a programmer a system that requires constant on-call burning out the team—they'll tell you (if they've been around) heroics are a sign it's broken, not to find more heroes. Definitely not to pull the person working on systemic issues off that nonsense and get them a shift.
Show them an equivalently structured broken system in a different field and they'll demand heroics.
I can't give you an example of an action, because I don't know, and I'm not talking about actions. I'm saying the approach itself is wrong and any action it suggests won't be effective.
Moralizing has a brutal, self-perpetuating metaproblem that makes people more and more convinced it works the more it doesn't. Actions based on moralizing will be chosen if suggested and they will not work, so any moralizing framing needs to be rejected right away, even if you can't suggest a better action.