I wonder if "diffuse harm happening to everyone" can ever compete with "concrete harm happening to specific people you identify with". It's clear "concrete harm happening to people about whom you give zero fucks, or actively dislike" is meaningless.
In the first category, let's go with atmospheric nuclear testing -- a small but concrete global cancer risk increase. We ended that, but only after doing it a lot, and getting most of the benefit. I'm not sure if occasional-but-universal things like car accidents (measures like airbags, etc.) count as the first or second category. The second gets a whole range of things. The third, virtually everything about warfare. All serious privacy/comsec things to date have been in the third category (unless you don't hate drug users, in which case some might be in the second category). The harm of the first category has been exceptionally minor, even if you believe humans at NSA read every single packet.
Visibility is a particular challenge for the privacy issue. On the one hand, it means that advocacy groups should make transparency one of their platform's planks; on the other hand, it exposes advocacy group to the criticism that they are conspiracy theorists asking the government to reveal violations that ostensibly don't exist.
Do the NAR or the Chamber of Commerce need atrocities?
This is exactly what got me started on this issue in the early '70s.
But as I said, you haven't done your homework, or checked this https://news.ycombinator.com/item?id=6185918 top level comment of mine where I detail some of the more notorious cases:
"Our side can point to kittens killed ("I swear I am not making this up"), pregnant mothers who miscarried, people crippled for life, mothers shot dead while holding a baby (Ruby Ridge, in which the BATF was enlisted to try to force her husband to spy), and many many outright killed (Waco started out as a BATF "ricebowl" operation, they wanted some nice video for their first budget in the Clinton Administration). Plus a constant drumbeat of gun owners ensnared by "flypaper" laws in gun grabbing localities; even NYC has realized it's damaging their tourist industry."
Please do your basic research before making more such howlers.
[1] With some exceptions. Carrying guns is still fairly common in sparsely populated rural areas, especially those with bears (northern Norway/Finland/Sweden). And, non-carry possession in the home is common in Switzerland. Switzerland is an interesting case because they cover both extremes: their law combines mandatory universal gun ownership with a very restrictive carry regime that makes it virtually impossible to carry a loaded gun out of the home (and even restricts the transportation of unloaded guns).
But irrelevant to my general point of:
Gun grabber atrocities were followed by gun owner political power.
A stark lack of privacy atrocities is correlating with no privacy political power.
The choice of giving money to, say, EFF, is also easy for me to make, but I couldn't point to a specific and targeted threat in this case, it is more of a feeling that things take a wrong direction, which is not as mobilizing.
What specific incidents, with victims most will empathize with, can the privacy effort point to?