It’s quasi-passive voice—a sentence grammatically in the active voice but where the subject is purely passive. Such as “honey is sweet” is really an assertion about what happens when a person tastes honey.
The “people” here are purely passive; the sentence is an assertion about what an implicit actor should or should not do with respect to people.
The “people” here are purely passive; the sentence is an assertion about what an implicit actor should or should not do with respect to people.