For which reason would writers most likely choose to write satire

Satire is a technique employed by writers to expose and criticize foolishness and corruption of an individual or a society by using humor, irony, exaggeration or ridicule. It intends to improve humanity by criticizing its follies and foibles. A writer in a satire uses fictional characters, which stand for real people, to expose and condemn their corruption. A writer may point a satire toward a person, a country or even the entire world. Maybe this us a reason for writer to choose to write satire - the ability to say his word and criticize everything happening around.