raging against "managers" is an infantile anarchist or ultraleft program, isn't that Dilbert's whole thing? Managers are fine, it is capitalism that ruins the natural and normal human ecology of business administration.
Communists want to do business, but the mediator class literally spends their time means testing and putting obstacles in the way of workers getting power. Wage theft can open happen in the dark, don't let the woke utopian reformers hide the truth with their attempts to reconcile the contradictions of class society
To me PMC has value when used in the context of Debordian spectacle. They're a specific cultural manifestation of the caste system tied to university education and executive jobs. They socially launder the rest of the bourgeoisie through things like nonprofits and NGOs, outlets fairly unique to them. Their role within capitalism is mediation as a manager, but the professional part is a new aristocracy hidden behind a false meritocracy driving specific kinds of liberal/conservative ideology uniquely supported by them with targeted in-group messaging by the candidates. Understanding them as they understand themselves, specifically that kind of labeling and imagery that represents their relationship to system you're looking at, is important because it's the superstructural shit that will determine what and how they mediate down the line.