Get the calculator out.......
Maybe the reason that Emirates has difficulty attracting people with suitable experience is that although 25000 GBP’s sounds good initially, by the time you take out general living expenses there isn’t much left in the bank.
If you are of a single status, then sure, it is possible that you may benefit. However, if you have a family and subtract the cost of good accommodation, utilities, school fees and general living costs, is the move worth it for you?
For many people to make the move to the Middle East requires more than just a wage that you can exist on, it needs to be financially rewarding. However, I understand that we all have individual reasons to change jobs beyond the pay packet and if Sun/Sand/Slurp is for you, then I guess go for it. Otherwise make sure you do your homework on the living costs especially if you intend to save money while you are there.