Imagine some activity in which all affected parties have given their free and informed consent to the activity. Is this activity now ethically neutral/permitted, no matter what it is, insofar as it only affects those who consented to it in the first place? Suppose a person joins a fraternity that advertises itself as being organized around (for instance) learning from older peers, sharing and helping one's fellow students, making friends and participating in extracurricular sports. After being initiated, though, the person finds that there is an informal tendency of older fraternity members to bully new initiates, to make constant unreasonable demands of them and ostracize them if they refuse, to take their things without returning them and to use the new initiates as a less experienced opposing team for easy victories in sports competitions. Does the person who joined the fraternity have any right to complain about how he is being treated? Or can he, since the behavior engaged in is all nominally part of the fraternity's "mission," do nothing besides either accept the abuse or quit?