That there are irresponsible actions taken by political actors (possibly mistakenly so) doesn't imply a lack of integrity in the system overall.

The Abu Garib leaker was treated as a true whistleblower, because he was, not a criminal.

In your very comment you indicate that the Justice System even went out of their way to protect him.

In the case of Assange, they are after him, so we'll wait to see what kind of evidence they have.