A delusion is a sincerely-held false belief. Please consider: If all of the developers left your organization, could it still produce products? How about if all of the managers left? Your implicit devaluation of labor is not congruent with the actual reality of whose hands work the keyboard.

(And before you write a knee-jerk response, double-check your reasoning. Without managers, developers produced the Free Software ecosystem. Without developers, what did managers produce?)