I don't think it's so much the greed, every economy needs some way of distributing wealth in an uneven manner. Even idealistic communism requires that some people are more equal than others.
Unfortunatly with Dubai, I think that the way wealth has been distributed does not support the growth of a society. Wealth is distributed based on where you are from, not what you do. Hard workers at the lower end of the scale have no motivation to take pride in their work, and those at the top end have little motivation to improve themselves through education.
The amount of money being sent out of the country is just as bad for the economy as the amount of money sitting in a bank account doing nothing. The only way they can keep money in the country is to allow, or encourage skilled workers to settle with their families.
I'm going to stop now before I write an entire essay on this.

Brit, Fiji I'm unfamiliar with, can you give me a condensed version or some references to read?