The dynamic of politics in the modern Middle East is something which most Westerners don’t seem to wrap their heads around, which is understandable as it’s not at all resemblant of the Western left-right wing politics. The Monarchies, aka the royals, are in a constant power struggle against the clergy in which they both bye for influence. Case in point Iran’s Islamic Revolution, where the clergy successfully seized power from the monarchy. If we’re talking about Saudi Arabia specifically, everything needs to be put into context which is important in this case, the Saudi "export" of Wahhabism around the world isn’t something the royals chose to do, it’s a compromise they made with militant Islamists and the clergy following one of the most important events of the late 20th century which is also something most Westerners don’t know about, the
1979 Siege of Mecca. Had it not been for this one event and the ensuing compromises worked out, the Middle East and world as we know it would be completely different, including the possibility of 9/11 never happening.