Similar to a double standard, but with an added dimension. This term specifically relates to how individuals operate in a developed country, particularly in a judgemental community/institution. This term also relates to people who are highly individualistic, who could really make more of an effort to assist others, but don't.
For example, there is a difference between what people say, do, and think. They might speak of one thing, have a different motive then they suggest, and do something totally different then they say they would do in a given situation.
This term can complement 'two-faced', but in this situation the person is 'three-faced'. One thing is objective: they are out for themselves
many university professors exhibit the 'triple standard'. you would assume they care about their students, but many really don't. they might say they would help/listen to you, but dont. and they might lead you to believe something that isnt true just because they enjoy authority and power.