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: â€śItâ€™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 canâ€™t be an asshole until youâ€™re old enough to know better, and neurotic enough to sense that you ought to feel bad about it.â€ť
Yup plenty of assholes in the world. Are there any more than in the past when they were less apparent?
â€śThis isnâ€™t an age of assholesâ€”or at least there are no more of them walking the earth than there used to be back when they went by other designations,â€ť Nunberg says. â€śBut itâ€™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.â€ť There follows about 40 very entertaining pages about American politics, where assholism has been turned into a technique if not an art form.