I don't know what 'deeply understanding tech' has to do with any of that. Plenty of people who 'deeply understand tech' get drunk and puke in places. Honestly, you sound like a Victorian-era petty lord looking down his nose at 'commoners'.
This isn't about "commoners". It's that any large group of people contains assholes, assholes restrain themselves depending on circumstances, and the new users might well lack that understanding.
It's fundamentally not about "commoners", but about a knowledge-based restraint falling away. (As for the "commoners", you might also want to read the last part of my comment, instead of outraging)