As a single guy at EK you can easily send home 15 000 AED. Especially if you live the lifestyle that you have indicated. If you then opt out of company housing you can save more.
My case, F/O with kids, some months nothing saved, others 6000AED. Throw in visitors then not a hope of saving that month. We didn't come here to exist but to enjoy life, and that we do. All depends on your lifestyle, and that of your wife!
Been here 3 years now and family still enjoying Dubai etc. Being on the Bus, fatigue is an issue and when the command eventually comes around I expect the fatigue issue to get worse.
Feel free to ask any more questions. I can only tell it as I see it.
Later...