Sorry Porto I did know you meant investors, it was just a slip of the brain on my part!
Look, I think this has turned into something where half of you think the other half of us are actually defending the archaic working and living conditions some of these labourers endure, and that we are indifferent to the kind of grinding poverty they are trying to escape. That is not so, and I think that we who live in the Gulf will be rather more aware of it on a daily basis, than you lot sitting at home tut-tutting over your specs at your broadsheet newspapers. But do you think any of that will change any time soon if we refused to come here?
Be furious about it by all means, but all this vitriol dished out on MN at the women who come here with their husbands and families to earn a living is misdirected. The whole of the developing world suffers from the same problems/practices as the gulf states - it's just that they suddenly have obscene amounts of money are developing quicker than most, so it is more polarised and obvious. There will be expats living in very similar conditions in Nigeria or India or anywhere really - but for some reason they do not seem to attract the same level of contempt. 
Some of the spiteful and snarky comments thrown around in a sweeping way about the expat women are very unfair, and based on half-baked ideas by people who have never been here. Yes, there are a fair few spoilt, materialistic, shallow, self-absorbed, arriviste WAG types here - but let's face it, you don't need to come to the Gulf to find them!
The problem you often find here is that the 'western' expats are very much thrown together and live cheek by jowl in a way that they probably would not at home. So you will have someone who lives here reluctantly because of the recession at home, living month by month with little disposable income and a second hand saloon car, living next door to someone who is very well set up, full-time housemaid even if the wife does not work (or sometimes husband - yes I have seen SAHDs here) a much better, more expensive school paid by their employers, eating out in all the best hotels, driving a brand new Lexus 4X4, having a whale of a time socially, and swanning off to the Maldives for Christmas and Easter. People get bitter and chippy about it. There is a 'them and us' divide among expats in the Gulf, in just the same way as there is at home, but your nose can be rubbed in it a bit more here.
But as far as I can tell, most of us just normal, average, well-balanced and pleasant!