Its has alot to do with upbringing, Pakistani parents seldom teach their kids to clean the area and not throw away plastic. Infact i have seen grown up and so called educated people littering all over like baboons. I had a senior colleague at a university, spent most of his life abroad. Every evening he would go for a walk and pick up rubbish n stuff in a bag, i was astonished to see most of the uni faculty making fun of him n calling him crazy. And this was a damn uni where all highly educated ppl of society work.
We as a society have dreams of grandeur and think we r something special but in reality we r not. Even in religion we showoff as very religious but in reality are hypocrites.