A lot of moralising and hand wringing in this post.
Nearly every country you can think of has in its development phase used national or foreign labour living in poor conditions (ie camps,"labour lines" etc) on low pay. When foreigners have been attracted to it they have normally remitted back home as much of their earnings as they could, thereby improving the present and the future of those remaining there.
The whole thing has usually involoved a lot of pain, unfriendly discipline, long family separations but there has been ultimate benefit on both sides despite it being a hard and harsh deal.
It's a fact and you can't blame Dubai wanting to build a new future, even if many of the ultimate beneficiaries are foreigners in relatively well paid professional and support jobs. The whole place is a courageous venture and despite its detractors,- many of whom were flooding there for a new life only a year or so ago,-it ,like the rest of the world, will come out of recession and it will be more successful than many. At least it has put what there is of its oil money to good long term use in building the infrastructure of a modern state.Where has Britains' gone?