The more unfair and secret and organization is, the more paranoid becomes and suffers more leaks. This makes its internal communications very inefficient, since they all need to pay a tax for secrecy in the form of slowness, inefficiencies, leaks, etc.
Therefore, organizations have 2 choices: reduce the level of abuse and dishonesty, or pay that tax to develop inefficient secrecy. Reality is a compromise. On the long term and thanks to events like Wikileaks, fair organizations grow and the others will become extinct.