In the Greek edition it does not make this distinction.
Thank you very much for the clarification and also for this excellent game!
Its been awhile since I've looked at the rulebook, but if I recall correctly, in the English version, it doesn't explicitly state that gold is NOT a good. However, throughout the rulebook, gold is always referred to separately from goods.
for example, it will say something like:
"The number of Goods and Gold which can be taken into the next round is limited."