I recently saw an interesting feature on TV, they renovated the Maracana stadium, formerly temple of the people and now it has become one of these non-descript corporate arenas with plenty of box seats and ticket prices that many people can't afford.
I am amazed when I see these protests, I interprete them as people wanting more equality and social justice, rather than billions being poured into these giant events for the profit of corporations.
Brazil is such a fascinating country, I hope I can visit it one day.