Western society is more polite than the desh.

So why are some from the Indian subcontinent sort-of not as polite as they can be?
Isaac Schrodinger http://isaacschrodinger.typepad.com/isaacschrodinger/
has an interesting take on the subject. I synopsize/curtail his reasons:
1. Inbreeding. What's the point of being nice to people outside the family if one is never going to "need" them in any way. This is part of the mindset that says that one only has to care about the family, tribe and religion. Everyone else is not worthy of respect or courtesy. (That is not to say that everyone thinks like this but sadly too many do.)
[This attitude applies in many areas of the Middle East, where marriages occur within the extended family. Inbreeding is common. The argument for the negative genetics here can be taken up at another time.]
2. Schooling. "Lucky" Pakistanis spend a decade or more in hideous institutions where teachers can physically assault students for incomplete homework, low marks on a test, talking during class or for no reason at all.
OK - this is enlightening. I had not considered the differences in schooling "methods" at all.