What is the role of Canada in the world?

I mean how Canada influences the world? what its great contribution? im wondering why Caneada is less known for many, it is least been placed in the headline. News is very seldom especially when you browse a world renowned news cable tv... why is that so? the canadian dollar? is it important in the world? i heard Australian dollar even dinar is more important in the world. Why Canadians are too humble and never see themselves to show off the rest of the world? hmmmm