Course language as a vent for frustration and other emotions may have health or therapeutic value in some cases. Moreover, what people say in their own private social circles may reflect a level of code shifting that is mutually shared.
However in public, especially in the media, there is a matter of dignity and respect as mature and honorable people. Profanity in the media is a low standard of public morality that pollutes the airwaves and people's minds. It brings us down morally in a way analogous to how smog might affect people's healthy breathing.
