An "acceptable" wage is surely up to you to decide?
I worked in the UAE around 10 years ago and the wage was very mediocre then but the lifestyle was good and I was single and enjoying the social side of life.
I thought about going back there a few years ago but wages hadn't risen atall then (think they may have a little now).
Mrats was only paying about £27K at the time where a similar UK firm was nearing the £40K for same/same type work.
The trouble would always appear when trying to move back if you hadn't kept a house etc as you would be getting poorer every year.
Asia seems to supply the Middle East with an inexhaustible supply of LAE who can work for lower wages. I couldn't live in Abu Dhabi for what GAMCO were paying when I inquired 6 months ago.