Maybe it'll inspire the Brazilians to clean up their act? The eyes of the world will be on thing. If half the athletes are puking or covered in turds then that's going to be a rocket up their arse.
I strongly disapprove of the way the Olympics operates. It's such a monumental waste of money. They should have inflatable stadiums that are dropped off in the host country and then all they need to supply is a few fields. I don't see why you have to spend billions to watch a bunch of men and women running around and throwing things.
Money wasted for rational citizens is looting opportunity for ruling class!