The exploits have happened in ways that have exposed and hammered home the myriad places many applications expose unexpected side channels and larger attack surfaces than you'd think. These issues have opened a broader range of people to vulnerability, and I think opened a lot of people's eyes to the need for a sense of security and what that really means.
Top that with the level of explanation we've seen in at least the Rails and Ruby exploits, it's been a tremendous educational opportunity for a lot of people who will benefit greatly from it, and by proxy their users.
When the idea of a "SQL Injection" first became really prevalent, we saw an uptick in concern for security amongst framework developers, as far as I could tell. I think this will help get some momentum going again.
Speaking as a non-expert on the subject, security is all about a healthy sense of paranoia, across the board :)