Imperials are more bourgeois-ified than aristocrats afaik.

Late Septim empire was more 1500s/1600s but with magic than ancient roman (The ancient romans are the Remans).

This is most evident in Morrowind, but even in Oblivion there's stuff like printing presses, near daily papers, etc. This is also clear in Skyrim when one approaches locations associated with trade (e.g. Windhelm or Solitude) and meets bourgeois-aristocrats such as Vittoria Vicci owner of the East Empire Company.