The society has improved when you look at an individual perspective because half of the society is handicapped and people would not be pleased with being able to show their talents like Bergeron. This shows an inequality between the people.
One part of the story that the author exaggerated is when he described Bergeron dancing. I think the author exaggerated on this part because he wanted to give a point to the people not seeing someone dance that great and like Bergeron and the dancing girl just jumped extremely high. One other example is when the author exaggerated when Bergeron takes off his handicap and