Sure and Apple even has even found a replacement CEO for him. But my point is that leadership can be removed (or die) and the organization will still be around.
MBS is well aware of USA using either a coordinated attack (OBL raid) or a targeted strike (cruise missile) to kill high level targets. Perhaps Saudia Arabia will continue to exist as a country after a war with the US; but he won't and the US will be getting the oil.