People believe there's a better way to get your work out to the world rather than destructing property.
Depending on the place where the artist chooses to do graffiti, it can greatly damage the property value. This causes unnecessary stress to the property owner, and the clean-up costs are not cheap. In fact, graffiti clean ups cost the government millions a year (Rahn).
Although this is true, most artists do their works on the sides of abandoned buildings. Some even risk getting injured to display their art on a blank billboard. Few graffiti artists blindly tag an occupied house or a marketplace. However, many view graffiti not as the art it is, but as a crime.