It is true that the Internet can be used to disseminate falsehoods quickly, but it just as quickly roots them out and exposes them in a way that the traditional model of journalism and its closed, insular, one-way form of communication could never do.
My nature is that when I see abuses of power, I want to expose those abuses.
The purpose of whistleblowing is to expose secret and wrongful acts by those in power in order to enable reform.
The Obama administration does not hate unauthorized leaks of classified information. They are more responsible for such leaks than anyone. What they hate are leaks that embarrass them or expose their wrongdoing. Those are the only kinds of leaks that are prosecuted.