Would you like them more if they would publish what they get, unless it somehow hurts American institutions?
Why should WikiLeaks protect only US? They arent US organization, Assange is Australian, most staffers are European based.
Your arguments sounds like it came from somebody who would say, that leaked DNC and Podesta emails should not be read, because they can hurt DNC campaign. I advise you to start advocating for big American firewall, something like China has, so you can protect US citizens from all information that might open their eyes but hurt some officials.
It very important that these tools are published, so software companies can patch their software and people are able to protect themselves. Not everyone is US citizen. Rest of the world greets any leaks from intelligence agencies from any country. If you dont want, dont update your OS and security software, the rest of the world will.