Sweet, so you see the positive effects of something you didn't know existed no longer existing. I guess such positive effects would be along the lines of relinquishing our control over the internet prematurely (to be fair, this probably would have happened at some point anyways, but that's definitely power we don't want to have as a nation as long as possible!), straining relations with our allies (which is always a plus!), reducing our ability to gather intelligence on foreign assets (this one has a huge thumbs up, too!), and permitting those being monitored to find means to communicate which aren't monitored (definitely can't argue with you there, either!).
We don't even need to delve into the realm of possibility with covert allegiances being formed or strengthened against us, because anything coming out of that is surely a positive, too.
All hail Edward Snowden! Liberator of the free world! Heroic knight against the US government securing their interests against foreign assets!
I've stated this a few times, but the point is indefensible. Even if you say it doesn't matter, it does matter that he had no authority to take it upon himself to release the information. Either way, the information he released is covered by national security -- unless you categorize our espionage of foreign nations on the same level as putt-putt golf.
As for Ellsberg, even though that was outside of my lifetime, a quick look at Wikipedia makes it obvious; illegal evidence gathering and lost evidence got him acquitted because the case became irreparably tainted, to summarize my perusal. Aside from that, there is the question of whether or not the information should have been classified, by today's standards (I am not looking up previous judgments of what constitutes classified throughout history for this) -- but he still would not have had the authority to make the decision himself, regardless. We will never know, and the subject is entirely irrelevant to Snowden because there is no question that espionage of other nations is entirely a national security issue.
Aside from the Nixon comedy and his involvement derived from your silly "based on who is in the White House" ridiculousness, it matters not who is in the White House. Only a dickhead would support a traitor based on a political party, or give merit to one at all.