There is a book about it…Assholism.
Malcolm Jones has reviewed it at The Daily Beast:
It is a word sparingly applied to women and almost never to children: “It’s easy to think of small children as little shits, since a predisposition to malice or cruelty can manifest itself very early on. But we rarely describe little children as assholes. You can’t be an asshole until you’re old enough to know better, and neurotic enough to sense that you ought to feel bad about it.”
Yup plenty of assholes in the world. Are there any more than in the past when they were less apparent?
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“This isn’t an age of assholes—or at least there are no more of them walking the earth than there used to be back when they went by other designations,” Nunberg says. “But it’s fair to call it an age of assholism, one that has created a host of new occasions for acting like assholes and new ways of performing assholism, particularly among strangers and in public life.” There follows about 40 very entertaining pages about American politics, where assholism has been turned into a technique if not an art form.