If you earn 16000usd per month in the UAE the most you could possibly send home if you live the 'average' expat with two kids is around 8000usd. That means you spend the other 8000 in Dubai assuming those savings leave the country.
So assuming you spend some days in Dubai with a total spend of around 1000usd (including what Emirates spends on your hotel room) you would only earn around 8000usd for the book keepers in the government to be happy.