I take your point about the 'abstract' nature of online privacy. But another angle might be suggesting to those that are ambivalent on the issue that the pervasive (and for all intents and purposes, permanent) recordkeeping nature of 'software surveillance' should be much scarier than some guy sitting outside. I mean, at the very least, even with some guy sitting outside, you'd still have privacy inside.
But again, I hear you. Most people unfortunately have come to view the issue as being just about targeted advertising (which some go so far as to espose as a good thing).