I have not experienced this, but that doesn't mean it does not happen. I doubt I'm the exception but I've had great experiences with every leader I've met. Had them coach me and try to develop me. I feel the feedback I've been given is fair (if I look at myself honestly) and for my benefit.

To put it another way, when I describe why I love my job to others I tell them of this same thing you are asking about. At least in my experience the values and behaviors are followed and not just writing on a wall in the break room.