Earlier quoted context omitted.
What leverage exactly? Consider a major split between SA and US. Who do you think would come out worse off?
Look at the hysterics over the current gas crisis. Break it off with the Saudi and you’ll be wistfully looking back at $5 gas. The Saudi regime would have some issues too, but the worse things are for them, the worse it would be for the west.
In application this psychology is not suitable for the full scope of political decisionmaking.
One needs to design a subjective logical system in which the leverage operates. The leverage could be used in thousands of different ways.