Well that is hard to measure in terms of fun/enjoyment, celebration, pride, etc.
Certainly, it is possible to see the financial benefit.
After a meeting of the executive committee at Costa do Sauipe, the announcement was made that the next World Champion will receive a record price money of 35 mio US Dollars (25.6 mio Euros) and
the second finalist receives 25 mio USD.
FIFA will spent a new record of 576 mio USD (422 mio Euros) in price money. The previous record was from the WC South Africa 2010 at 420 mio USD.
The 16 teams that will travel back home after the group stage will be given 8 mio USD each. The round of 16 is worth close to 9 mio USD. Teams progressing to the quarterfinals will be given 14
A total of 70 mio USD will be paid to clubs that employ the players as insurance and expense allowance and will be distributed by the national associations.
The full article (in german) can be read here: http://web.de/magazine/wm-2014/18403004-wm-brasilien-bringt-25-6-millionen-euro.html#.A1000145