And of course the people with the right intentions won't last in the job long if they're not meeting the all-important targets
They will. It's called cognitive dissonance. When your behaviour doesn't fit your beliefs, you'll modify whichever of these is easiest to change. So it's usually your mentality- for most people. Deciding that pushy middle class parents want the earth is a great deal easier than going on the dole, or changing a whole culture of a large organisation.
Think of Aesop's fox convincing himself the unreachable grapes were sour after all