Usually the third group does stupid shit (as in stupid stupid, not smart stupid), the first one gets angry at "kids these days", and the second doesn't care as long as it doesn't affect their use of their tools.
I find this model to accurately describe quite a lot interactions in the general tech sphere. So for instance in programming, the group 1) is what you call "hackers", and the primary folks who get religious over editors or programming languages. Group 2) mostly looks at it and says "meh". Those are the "product-focused" people, the "professionals". Group 3) are kids that try to flock to CS because it's cool and pays a lot.
Or, Google screwed up the deployment of Glass, because they marketed and sold it to rich people from Group 3) instead of Group 1) (Glass itself wasn't a good enough tool to create the Group 2) around it.).
Or all the remarks about how technology companies dumb down everything. That's Group 1) complaining that Group 2) designs stuff for Group 3).