The collapse of Dubai's adobe slave civilisation is just as much A Good Thing as it was A Bad Thing that many British expatriates seemed to feel no compunction about being served by slaves. It would be A Very Good Thing if many such expatriates were really given the official third degree, you know, unnecessary internal body searches, that sort of stuff, the next time they land at Heathrow.
Dubai's collapse is the best hope for its slaves. While slavery will persist for as long as humanity endures, entire civilisations built on slavery just don't have the legs to keep going anymore. What does for them in the end is the mass realisation that they are slave civilisations. If there is one event in life which scares people just as much as dying, it's the thought of being enslaved.
And how the wannabe slave-owners must hate a world grown pale at the Galilean's breath, one which actually finds slavery revolting wherever it's practised!
It's pointless to even try to guess whether the telephone and the Internet would finally have done for the Roman Empire; but in a global labour market, willing slaves are hard to come by. That's why they have to be duped and lied to instead.