[zaroth]

I think you're missing a key tenant of the purpose of government. Of the people, for the people, doesn't mean all humanity, but rather the people who are being governed and both pay into and benefit from the system. Government being a collective outsourcing of the force required to achieve some common good, again, for the people doing the outsourcing.

That's not to say there couldn't be ratified treaties between countries which give up some measure of sovereignty in order to set some better ground rules. We ratify all sorts of treaties like that, Obama ratified (by executive order, which I didn't know was possible) the Paris accord just last week. But I don't know of any treaties the US has signed to limit non-domestic wiretapping.