An ethnocentric attitude may be advantageous for certain groups, but at the same time it may be having disadvantages for the opponents. For instance, Sunnies and Shias among Muslims and Protestants and Catholics among Christians are ethnocentric in respect of their sects. Thus, it would place these sects in an advantageous position, i.e, to have solidarity in their groups and maintain status quo.
Through religious, political, economic and educational institutions ethnocentrism is taught. Members of society are indoctrinated to conform to particular cultural patterns. The religious and educational institutions are the clear examples for teaching ethnocentrism. The children are taught about their country's achievements of their national heroes. They are also thought about the superiority of their literature.
Ethnocentrism means the evaluation of other cultures with the measuring and prevailing in one's own-culture. This is why the cultural traits which are similar to those of the observers, are evaluated as better than those which are quite different. The attitude where a person attributes one's own culture as superior to other lacks objectivity.