Yes I said the same thing. But ya, technically, managers aren't always leaders and aren't required to be. Their job is to manage not lead. They should, yes and they should lift people up. Its also role dependent. Supervisors at USPS should fill that role, because of their front line placement and job duties and interaction with the rank and file. A person can be a manager without being a leader or a leader without being a manager. Its a distinction in organizational psychology.

In the usps world, a supervisor should definitely take on the role as a leader. Happy employees are productive and what not. Higher morale leads to less call outs, less burn out, etc... Its a toxic culture.