I think that because It contains lots of experience,personal development and language skill. It has effect on students because people from all over the world came at one place having different cultures and different thought. When they study together they discover new methods of study and research. This is ultimately helpful for whole world not for single country. In this way whole world can walk together in every field of life. When they talk to each other they came to know other religions, traditions and it makes them think differently.