You claimed the Ottomans did not control Arabia,
Yes, which is true, of course.
As any schoolboy knows, the Ottoman Empire never controled more than perhaps 20% of what is now Saudi Arabia, and only controled parts of what is now Eastern Jordan (e.g. Wadi Rum) on paper. Deals with local tribesmen were acts of conveniance at best, and only existed at all because of the absence of any legitimate challenge.
You probably wouldn't be familiar with Lawrence of Arabia, but his bio (not to mention the sublime David Lean film) are worth checking out for anyone actually interested in the topic. Wadi Rum is also a wonderful place to visit.
[ame=http://www.amazon.com/Lawrence-Arabia-Capo-Paperback-Liddell/dp/0306803542]Lawrence Of Arabia (Da Capo Paperback): B. H. Liddell Hart: 9780306803543: Amazon.com: Books[/ame]