Characterization is very important to write good stories. In the case of satire, characterization can change people's perspective using humor and irony.
1.- We understand satire as a literary form in which follies are ridiculed, using parody, irony or burlesque.
2.- Characterization is satire emphasizes the weakness of people in their common activities or ways of thinking.
3.- Authors expose human behavior and criticize it using satire. They can incorporate fictional characters to exemplify a case with irony.