The original Khashoggi are of Turkish heritage, and married into Saudi royalty. Uncle Adnan was the essential arms broker until he forgot to pay off some royals. As for Jamal, he got the first in-depth interview with Osama Bin Laden after the creation of Al Qaeda in August 1988. Jamal has played footsie with Islamists of various stripes for years, and as noted has had a long established relationship with the Muslim Brotherhood. It was one reason he would never return to Saudi Arabia, and it is the reason he is not welcomed in Egypt. He is of course loved by the Washington Post and the US “liberal” establishment.
Not much difference between Arabs and Turks. They apply similar methods. Principally they are Moslems. In history Turks and Arabs have waged war and ruling class intrigues pretty much the same. It is the Asian way.