James Madison observed, “[a] popular Government, without popular information, or the means of acquiring it, is but a Prologue to a Farce or a
Tragedy; or, perhaps both.”
Link
"As Scott Shane, the New York Times' national security reporter, puts it: 'American taxpayers, American citizens pay for all these diplomatic operations overseas and you know, it is not a bad thing when Americans actually have a better understanding of those negotiations'. Mr Shane goes on to suggest that 'Perhaps if we had had more information on these secret internal deliberations of governments prior to the invasion of Iraq in 2003, we would have had a better understanding of the quality of the evidence that Saddam Hussein had weapons of mass destruction.'
The Economist also
wrote, "Greg Mitchell's catalogue of reactions to the leaked cables is a trove of substantive information. For example, drawing on the documents made available by WikiLeaks, the ACLU reports that the Bush administration 'pressured Germany not to prosecute CIA officers responsible for the kidnapping, extraordinary rendition and torture of German national Khaled El-Masri...'"
With due respect I don't know anyone who is arguing what you are suggesting.