Where Dubai was once a quite nice place to live, an attitude that can only be described as unbridled greed has overtaken the place. The cost of living is enormously high, and if you have two children at school, you won't have much left over each month from an FO's wage, even if you're careful with your money.
I know for a fact that quite a few Indians on what would be called middle incomes have sent their families home and moved into bachelor accommodation. There are even stories (obviously, not confirmed), that some are now living in their cars and renting ten minutes of shower time daily in compatriates' flats, as they simply can't afford a shared flat any more.
I thought these stories were urban myths, but a week or two ago, I went out to the airport to pick my wife up from a flight. The flight was a bit late, so I parked near the cargo village - (the cops move you on if you park anywhere near the terminal) - to wait for her to call me as she got her bag. In the car park where I parked, there were at least four men sleeping in their cars immediately around the spot I had parked in.