Something like 90% of romans did not live in cities. Survivorship bias again. We judge them buy the solid cities, or lord's manor houses. We have lost the mud/brick/wood farms where the vast majority lived.
I'm sorry, but you're getting into "I'm smart and want to argue a point" territory.
Nothing of that applies to Pompeii, as it was buried by a volcano, and everyone and everything that wasn't taken as the people were runnung away stayed as it was. It's basically the Pripyat of Classical Antiquity
