Joe, the bootlegger, started it all.
JFK disrespected the office to which he was elected with more illicit sex than WJC could have imagined in his wildest wet dreams. He then intoned that we should serve the country, not ask it to serve us in a speech that Karl Marx would have been proud to deliver.
Then we have horny Teddy, a precursor to Michael Phelps, who pulls rank to escape the consequences of his own deplorable, murderous behavior. And there's some nephew who barely escaped conviction for forcing himself physically on some hero-worshipper.
What we have here is clearly a dynasty which is bored with economic power and greedy enough to seek political power. As their economic power was largely inherited and not earned, it's only appropriate that they would resort to political power which is never earned, just voted in.