Were the promises and agreements made between the Arabs, French, and British during the First World War which led to the formation of the Middle East compatible?

"For by superior energies; more strict affiance in each other; faith more firm in their unhallowed principles, the bad have fairly earned a victory over the weak, the vacillating, inconsistent good." --William Wordsworth Were the promises and agreements made between the Arabs, French, and British during the First World War compatible? The formation of the Middle East oft conjures up the image of Allied delegates huddled hawklike about a conference table littered with outdated maps, …

…believed in the Arab cause and had been forced due to extenuating circumstances to go against their word, but they had dealt with the Arabs in complete lack of good faith. Perhaps the utilitarian ethic that judges actions according to their consequences rather than any intrinsic value should be more widely recognised, but then we are faced with the insoluble ethical question of whether actions can have intrinsic value based on good or bad intentions.