Final answer:
The warden is the prison officer responsible for managing resources, setting an example for staff, and establishing professional standards, as evidenced by the influence of authority positions shown in the Stanford prison experiment.
Step-by-step explanation:
The prison officer who manages resources, acts as a role model for staff, and defines professional expectations is the warden. Drawing from the lessons of the Stanford prison experiment, conducted by Phillip Zimbardo, it is clear that the roles individuals play within a prison setting can have a profound impact on their behavior. The experiment demonstrated the power of context and authority positions in influencing behavior, as even the lead researcher began to act as a prison supervisor, losing sight of his role as a detached observer.