I have kind of a crazy idea regarding Fealty (not sure if possible to code) that may help reinforce the "work tiles, not Specialists" theme and make it more distinct from Artistry.
What if the Serfdom policy provided 1 Great Merchant/Scientist point per Farm/Pasture worked in a City, but removed the ability to get
GPP from Scientists/Merchants? I think it would be cool, represent the idea of localized rural life rather than big urban life thematically, and provide synergy with the "+1
per 4 non-specialist
Citizens". What are your thoughts?