All very good questions that I hope will be answered. Theatre was, and is a diverse art form.
Although early Greek art focused on the human ideal, their later art shows that the Greeks appreciated all forms, and found the human body in general to be a beautiful thing One tradition that is still very prominent in our culture is theatre.
Also like Perseus who had slayed the hydra.
But theatre is used for so much more than simply entertaining an audience for an hour or two. Satyr plays dealt with mythological subject in comic manner.
In doing so, the dramas were dramatically ironic, and did, therefore, serve as a type of moral reminder to Dionysian festival attendees.