STP,
You are right that ego and a superiority complex are dangerous in aviation. However, those are nowhere near as unsafe as rogue incompetence and a lack of inexperience. I have flown with maybe one pilot at CX on my fleet who might not have manually intervened in this scenario. Perhaps there are more on your fleet, and you don't want to disparage them. That's admirable, to a degree. In fairness, I am not that familiar with the current CX cadet JFO product, but the SOs are highly variable from totally worthless to very sharp.
I really don't care what the scenario is.. FMC sequence, misunderstood ATC instruction, a system failure.. when the aircraft starts pointing itself towards high terrain, I intervene. If we can't at least do that, then the airlines might as well have no pilots in the flight deck. Right?
PS - The ground has a PK of 100%.