How events like world cup and olympic games can help to chang the brazil's reality?

In 2014 and 2016  happen the olympic games and the world cup, dates
where peoples from diferents places will join to dispute certain events.
If the realization these events are being spending milion in only reforms
or constrution of stages (money that could be going to improve education
and health of our country). the improvement also as in social part the
improvements urban.
But that good  is a social improvement knowing that education and the
health are in need of this money the mainly part of speding in infrastructure.