If you take oil out of the equation there would basically be no capitalism there at all, nor would there be "the highest income per person in the world" in the world. Look at Muslim countries that don't have oil, in contrast the US was a wealthy capitalistic country before oil.
In short, "the highest income per person in the world" is not because of their society, it is because of oil money. They didn't look for oil, they didn't drill the first wells, they didn't pump the first oil, it was someone else, and now because of capitalism from the outside, not inside, they can afford the wealthy welfare state they have.
What kind of chauvanistic bs are you peddling? You obviously have some kind of nationalistic agenda. You want to take the oil money out of Texas, too? And who is running this lottery, anyway. You are talking nonsense. If you compare the Saudi capitalists to their nomadic ancestors who carried their wealth on camelback, then you would see the difference. Or, you could compare them to environmentalists who do not like oil, and fight drilling as the ones in Forida who prefer clean beaches. No oil money here, even though there is oil.