this is true but barely so... you'd have to chop 100 pieces of wood for there to be any real difference... it's like 10% of what you make is distributed to every merchant... I was wondering the same thing so I chopped wood for an hour in Riverwood while watching Everybody Loves Raymond and all the people with any gold had like 100 extra gold
Pretty tedious, but a cool find.
Now all we need to figure out is if the same boost is provided from all the jobs...