From The Australian Government's Office of Information Commissionerhttp://www.oaic.gov.au/freedom-of-information/foi-resources/freedom-of-information-guides/guide-to-the-free...
[W]e believe that when government is more open to public scrutiny, it in fact becomes more accountable. As a result there is a greater need for it to be seen as efficient and competent. The accountability of the government to the electorate, and indeed to each individual elector, is the corner-stone of democracy, and unless people are provided with sufficient information accountability disappears.
It is due to the 2010 Reforms to the 1982 Freedom of Information Act, that the media (and anyone else) has been able to access the information more easily.
(Actually, reading the above link, gives some history of the FOI in democratic countries, could be interesting reading for some.)
DEB