However, in historical context, Wikileaks is (very likely) revolutionary.
Wikileaks challenges the whole concept of closed government. Governments have assumed that they can keep secrets, whether out of national or selfish interest. Suddenly that's not true any more. Any secret will eventually become public. And there's little you can do - national newspapers and TV stations can be dealt with, but how can you shut down a server on the other side of the world ? And if you do, so what ? The secrets are on a million sites and torrents.
For good or ill, this changes the way governments, especially democratic governments, do business. If you know that your innermost secrets will be revealed, not in 40 years time but in tomorrow's evening news, how do you conduct affairs of state ?
Maybe this is something we've all realized for a long time, but only now, it appears, do governments realize the full implications of what "World Wide Web" really means.