Unfortunately I don't think you have a very good understanding of the UAE, being the National Day (or Day-z as it turns out) it may be worth doing some historical research.
That money the 'UAE' has, ain't for all of the UAE!
A historically tribal region and once the Trucial Coast (also referred to as the Trucial States of Oman), combined with the ruling family of Sharjah being of the same Royal family from Qatar things get very complicated.
This account from the US library of congress will also enlighten as to the complications of the UAE (variations of spelling occur with respect to the Emirate names):
Oil is the major source of income for the federation, but it is found in a significant amount only in Abu Dhabi and to a lesser extent in Dubayy, Ras al Khaymah, and Sharjah. In principle, each emirate is required to contribute to the federation's budget (according to the provisional constitution, each state's natural resources and wealth are its own), but in practice only Abu Dhabi and, to a lesser degree, Dubayy have financed the federation. The resulting disagreement over budget contributions as well as over the integration of defense measures and forces led to the recurring renewal at five- year intervals of the 1971 provisional constitution, rather than the intended adoption of a permanent constitution.
And to complicate things a little further with adjacent Arab States including Saudi and Oman;
In 1955, the United Kingdom sided with Abu Dhabi in the latter's dispute with Saudi Arabia over the Buraimi Oasis and other territory to the south. A 1974 agreement between Abu Dhabi and Saudi Arabia would have settled the Abu Dhabi-Saudi border dispute; however, the agreement has yet to be ratified by the U.A.E. Government. The border with Oman also remains officially unsettled, but the two governments agreed to delineate the border in May 1999. Since that time, the U.A.E. has constructed a border fence along the entire length with both Oman and Saudi Arabia. The new fence and checkpoints will likely be finished by 2008-2009.
Here starteth the lesson....
