It probably even vindicates what Wikileaks stands for.
This is one of those cases where damage limitation is the sane and sensible response; they've lost those cables, we are going to see them. Deal with it. They need perspective; in the grand scheme of things it is highly unlikely to be "the end of the world". And if it uncovers corruption and naughtiness then all the better.
Hounding Assange and Wikileaks only ends up making them look guilty. Which is stupid, especially as there is nothing (so far) hugely corrupt or terrible in the leaks!