I drew up a Supermarket and Mega Mart.
I think the Supermarket could be a good source of coin and civics before banks are established. "why should a supermarket generate Civic?" Because they're public buildings where all families overlap and interact (ie its where I buy girl scout cookies).
I thought maybe they could consume food, water, and power to operate. But I agree, I cannot reason the need of uranium in construction. At least I hope every Walmart doesn't have a pressurized water reactor in the back.