Often institutions develop fundamental problems because individuals gradually adjust their behaviors away from the official norms. If it goes uncorrected, the new behavior becomes the unofficial norm.

One strategy for correcting the institution is to start holding individuals accountable. The military does this often. They'll "make an example" of someone violating the norms and step up enforcement to steer the institutional norms back.

Sure it can feel unfair, and "everyone else is doing it" is a common refrain, but holding individuals accountable is one way to fix the institution.