Let’s not forget ol’ Precott Bush. He was quite the wheeler-dealer in the last century.
“World War I was then raging in Europe. With the prospect that the U.S.A. would soon join the war, two Skull and Bones “Patriarchs”, Averell Harriman (class of 1913) and Percy A. Rockefeller (class of 1900), paid special attention to Prescott’s class of 1917. They wanted reliable cadres to help them play the Great Game, in the lucrative new imperial era that the war was opening up for London and New York moneycrats. Prescott Bush, by then a close friend of “Bunny” Harriman, and several other Bonesmen from their class of 1917 would later comprise the core partners in Brown Brothers Harriman, the world’s largest private investment bank.”
http://www.modernhistoryproject.org/mhp/ArticleDisplay.php?Article=BushCh01&Entity=BushPS
During the English Civil Wars and the various Jacobite conspiracies which followed it was commonplace for families to keep at least one son prominently attached in both camps, so that, whichever way the fickle mob went, the family’s interests would be protected.
The Harriman family patronage of both the Bush and Clinton families shows this game is still played, but now the political leaders court the great families, not the other way around.