Comment by mcv

I didn't mean to imply that all UK managers or politicians are like that, just that there's a segment that's coming from these schools that train primarily for confidence rather than competence. And they try to help each other to these positions of power in order to maintain the system.

It's not universal for all UK politicians and managers, and it's not unique to the UK, but their system of mediocre elite schools that seems to train specifically for confidence, does make it more blatant.