The country is hit by "leakers" when arbitrary people on inside leak secrets for arbitrary reasons. Even the leakers themselves disagreed on morality of various things at various points. The problem is much broader and more subjective than you're hinting at if we adopted a policy of letting anyone leak anything they personally thought was bad. Especially if only one country in a world of nations competing was doing it.

The people of any country where would-be leakers are summarily executed for treason will not know what its government is hiding from them. Sometimes governments hide things for good reasons but, sometimes, the very crimes the government commits in order to protect the country's principles end up undermining those.

I dont disagree. Im pro leaking of evidence of crimes. That's whistleblowing. Manning did a lot more than that, though. So, your point is a strawman better suited for someone like Binney who only discussed corruption instead of huge, raw dump.