anengineer:
1. Camera would not have stopped this tragic loss of life.
2. I don't see the point of your question.
Based on what a great many airline pilots report, some of whom are friends of mine for decades, the cultural relationship between management and workforce in airlines is already toxic, or close to it.
What you suggest would make that set of working condition worses, not better.
Mods, if this line of discussion belongs in another thread, please move us and it.