Why and how are fallacies used intentionally?

Fallacies are very interesting ways of viewing or arguing an argument. Fallacies are used in many different instances. When a person is determined to make a point or to persuade an audience of their own point of view; that person may go to the extent of using fallacies to do just that. A person may also try to use a specific fallacy dependent on their audience. For example, a politician may use the hasty generalization to convince an audience of unsophisticated citizens of an unrealistic tax proposal. Fallacies can be very deceptive. Especially, when there is lack of knowledge within the argument, a person may appeal to ignorance. By appealing to ignorance, the person will make an argument with very general and unexplainable information to prove their point of view. In marketing, different organizations may ask a celebrity to endorse a product or service to draw attention. For example, appeal of authority, Proactive (acne treatment), reached out to celebrities such as Jessica Simpson and Sean “Puffy” Combs to convince consumers that the product is good enough to use on their skins therefore it is good enough for all skins, even those who are not famous. In essence, fallacies are used to cover up the lack of logic and factual argumentative points.