First time posting here. Please remove my response if I have done something wrong.
I just finished reading Seven Pillars of Wisdom so I will take a crack at this.
Lawrence himself seems to answer your question in the introduction of his book. He was deeply embittered by Post War British policy and made his feelings quite clear. I will quote him below from the introduction to Seven Pillars of Wisdom.
The cabinet raised the Arabs to fight for us by definite promises of self government afterwards. Arabs believe in persons, not in institutions. They saw in me a free agent of the British Government, and demanded from me an endorsement of its written promises. So I had to join the conspiracy and for what my word was worth, assured the men of their reward. In our two years partnership under fire they grew accustomed to believing me and to think my government like myself, sincere. In this hope they performed some fine things, but, of course, instead of being proud of what we did together, I was continually and bitterly ashamed.
It was evident from the beginning that if we won the war these promises would be dead paper, and I had been an honest adviser of the arabs I would have advised them to go home and not risk their lives fighting for such stuff"
In other words, I presumed (seeing no other leader with the will and power) that I would survive the campaigns and be able to defeat not merely the Turks on the battlefield, but my own country and its allies in the council-chamber
Lawrence, T. E., Wilson, J., & Wilson, N. (2004). Seven pillars of wisdom: The complete 1922 text. Fordingbridge, Hampshire: J. and N. Wilson. Pages 62-63
Just to follow up. What are the Arab views of T.E. Lawrence (both now and during Lawrence's era)?
Since we have gotten a NUMBER of comments asking "why all the deletions?" and it is serving no one's purpose, let's have that talk again about why you see so many deleted comments here on /r/Askhistorians.
Unfortunately, we have already had to remove a number of poor quality responses in this thread, including many asking about the deleted comments, which merely compound the issue. In this thread, there have been a large number of incorrect, speculative, or otherwise disallowed comments, and as such, they were removed by the mod-team. Please, before you attempt to answer the question, keep in mind our rules concerning in-depth and comprehensive responses. Answers that do not meet the standards we ask for will be removed.
Additionally, it is unfair to the OP to further derail this thread with off topic conversation, so if anyone has further questions or concerns, I would ask that they be directed to modmail, or a META thread.