It is the art of power-games people have been playing throughout the ages. It has grown from a brutal use of power to sophistry, and recently, to the subtle use of voting, constitution, and the legal system and its mechanisms in order to channel power and its use in a social setting.
If language is not correct, then what is said is not what is meant; if what is said is not what is meant, then what must be done remains undone; if this remains undone, morals and art will deteriorate; if justice goes astray, the people will stand about in helpless confusion. Hence there must be no arbitrariness in what is said. This matters above everything.