Management by rumors

I've been googling "management by rumors" but most of the resulting entries talk about intentional misuse of communication, examples of situations where people strategically use false information to get a given result.
But what really worries me is when our mental models prevent us from absorbing the complexity of a given situation, leading us to misinterpret facts and design our strategy based on beliefs instead of facts...
What I call "Management by Rumors" is the kind of Management we base upon prejudice and pre-conceived and unquestioned beliefs, that lead us to terrible mistakes.
Management by rumors leads strategists to decide to cut costs that affect people's ability to perform well on their job. Management by rumors leads senior management to 'believe' people in the lower levels are 'lazy' and neglect their responsibilities intentionally.
Management by rumors generates a fertile ground for conflicts and prevent connection and team learning from happening...
Management by Rumors can only be eradicated by leaders that are conscious about their mental models and reflect constantly about their actions and thoughts.
If you are a leader, think very critically about the way you perceive your staff behavior. Pay attention to ideas that begin with: "he/she is lazy", "he/she is negative"; whenever we give people a label, we are tending to simplify human interaction complexity, and this simplification can be disguising a defensive routine in our reasoning strategy that prevent us from understanding complexity.