Do you honestly think that Americas military secrets prevent its manipulation and exploitation by foreign powers?
If anything, the fact of Americas military-industrial-pharmacuetical complex covering up crimes against humanity (torture program) and real war crimes (every twenty minutes) makes American leaders even more susceptible to corruption and influence by non-democratically elected actors, state or otherwise.
You'd rather the country be run by shady Blackwater types protected by ultimate state secrecy than have to deal with state diplomacy as its always been?
Wikileaks exposed pretty clear cases of war crimes and crimes against humanity where the laws and policies and "ethics" of the situation are very well documented, and are very well understood among the sovereign states which ratified them. These are clear crimes we are talking about.
The American military-industrial-pharmaceutical complex is inconvenienced by these crimes being exposed - not the American people, in whose names these acts are committed, and who bear ultimate responsibility for the actions of their state.
Knowing what is being done in your name by your government representatives is a good thing - you cannot be a responsible citizen otherwise.