Philip Zimbardo made the claim that the value of the experiment resides in the demonstrating the evil that good people can be readily induced into doing to other good people within the context of socially approved roles, rules and norms."

Stanford Prison.

Explanation:

This value was brought up to notice by Philip Zimbardo and some of his colleagues in the year 1973. They were interested in finding out whether the brutality reported among guards in American prisons was due to the sadistic personalities of the guards or had more to do with the prison environment.

Alternatively, prisoners and guards may behave in a hostile manner due to the rigid power structure of the social environment in prisons.