There could another level to this.
1. Spread the word that mass surveillance is already standard practice in one country
2. Wait for public outrage to ensue
3. Stack on more and more revelations (dilute) while mixing in some that are less invasive and make more sense (distract), and outline the huge scale. At this point, the public
a) is starting to get tired reading about all the new revelations (because that's how the public works),
b) starts associating at least some form of legitimacy with those programs that make sense to them, which in turn rubs off on the more invasive programs, and
c) slowly starts accepting the whole thing due to its massive scale, because what can a single person do to stop something so big?
4. Now, with the public worn down and somewhat in check, launch the same thing in other countries where such a thing would never have been possible before. Start small, don't get too close to the most outrageous stuff - but start building the cornerstone programs.
5. In case some of the really bad programs do get outlawed as an effect of the scandal in the originating country, that won't hurt the long-term goal at all, because the road has now been paved and they can always re-introduce the old, as well as realign and expand the new "legitimized" programs that were only possible because the old ones came out of the shadows.
I'm not normally a conspiracy theorist but I have to admit, the public relations aspect of this is impressive.