You should be fired if your automation is breaking 10% of the time.

All I'm saying is that the true costs of manual work usually isn't accounted for correctly. I see these costs spiralling into so much wasted work that it starts incurring more and more risk. Preference for gradual decay over Big Bang collapses isn't nessecarily rational, people tend to prefer living next to coal plants than nuclear plants despite the fact they're far far far more likely to die living next to the coal plant. It is in fact that irrational bias which needs to be resisted.