The worker turns canal city food into 60 gold.Another angle: how much do we actually gain from the worker? Per turn? If he has to travel to the somewhat distant chops over by SB and chop those unenculturated tiles, what are we getting, two or three hammers per turn?
Then chops for another 60 gold.
Then gets those 2 Sitting bull forests
Then gets 2 mines or windmills for canal