Dominance can exist in schools. When any school faculty holds onto too much power, student’s opinions or needs might be ignored. If the school faculty who has the power is makes great decisions, is opened to hear students opinions, and is willing to take care of student’s needs, it can bring great collective interest. If not, the world would become chaotic and vicious. When students are selling second hand books to others, the buyer may want to buy the books at a cheaper price and the seller doesn’t want to sell the book for too cheap. Reciprocity is involved when they start to bargain a price that they could both accept. For the collective good, the buyer gets the textbook she/he needs for a cheaper price, and the seller gets to change textbooks she/he doesn’t need into money. Typhoon Haiyans in the Philippines last year caused the death of nearly 6000 people, injured countless people and destroyed countless houses. But within a month, at least 150,000 people are provided emergency, shelter, medical attention and other assistances. These help that the victims of the typhoon received are provided by people who cared about them for the identity of being human beings.