> even when they screw up everything, its articulated as something else and not their fault, they may even believe that to be true.

The reason this is so important, both in government and in private business, is that these people decide nothing, until you get to the very top. And the ones at the very top are terrified of actually making any decision. They're at the top and what they're currently doing obviously brought them there. A change? Seriously? They carry out decisions from above them. The reason they want people who deflect blame from the decisions is, yes, to protect themselves, but also to make sure the person they work for can protect themselves, after forcing the wrong decisions downwards.

Companies, and governments, hold on to ideas decades (and governments: centuries) after they've lost their usefulness. You want to get far in education? You find a way to explain why knowledge of Latin determines success in life in 2026, and you learn to make this argument without giving the slightest hint it's not your actual opinion, without insulting Latin teachers, and without insulting administrators.

The problem is, of course, that if you chose the sane option, that Latin is about as important in 2026 as the remaining 2 years in the career of the long-since-senile senior education minister are likely to be ... you will not have any further need to worry about managing up.