Who are these rich people? I do not know. What is their general profile? I am not sure.
By definition an NRI could be a guy who works at a gas station in Texas as also Sulman Rushdie who just types into a word processor, yet is probably the 6th richest Indian outside of India. The first are the Mittals, I think.
NRIs could be pickle manufacturers like Lakhubhai Pathak (hope he is the guy..), or great ideators like Sabeer Bhatia, of Hotmail fame. They come in all shapes and sizes. They come in all religions and castes. They are the guys who left rich, who left poor. Who went to relax, who went to make a living. Those that flew the Luxury class and those that kept a cheek on the copper keel while traveling third class in a cruiser.
Over a period of time, I would also come to know that at the higher economical levels, the NRI community interacts with the locals. But at the lower levels, it is at the bare minimum. In fact, just the amount required for survival.
Wonder if they are the ones that responded to the Quit India Movement initiated by Mahatma Gandhi in 1942.