Courage is a wonderful mental quality that recognizes the fear of danger or criticism but enables one to proceed in the face of it with calmness and fortitude.
Who’s afraid of the Big Bad Wolf?
Many in leadership positions would rather face that wolf than a peer or an employee that needs correction. Some will justify a lack of required correction as an act of loyalty.
Apply the rules, regulations and policies with no exceptions to all. You will never have to worry about your house being blown down.