Nioka, are you sure you haven't been watching some news clips from India or Vietnam because if you have travelled to various parts of the world you will have a deep appreciation of Australia when you return home for comparison.
As for the incurable disease of Emphysema, smoking is a high contributor to this problem, but there are also other causes such as repeated exposure to asbestos or other chemicals that are harmful to the lungs, especially over a substantial time period. I have a friend who was exposed to asbestos and who never smoked. He suffers from Emphysema and has always lived in the country. So I would say your argument is a little lop-sided.
Nioka, I heard of another case of emphysema today from a bowling colleague of mine who was a heavy smoker and ended up with this terrible complaint. To make matters worse, his wife also has the same problem and near life's end. She never smoked in her entire life. The doctors put it down to passive smoking from her husband who always smoked inside their house.