... and still, the concentration on the effects, not the cause.
The cause being power, the problem is self-perpetuating - the powerful will always protect themselves and/or their colleagues as a natural function of self protection. Why does the Buffoon back Patel, Jenrick, and Cummings and Hancock until forced to change ? Power has a natural corrupting effect. It takes particularly self-reliant, self-confident (in the best sense) characters to accept the responsibilities of positions of power and discharge them for the benefit of those placed in their care and oversight. I have been fortunate enough to serve with a few ... but many more of the less accomplished.