In Freebooting Venus, when you examine treasure, you find that you have opportunities to do certain things but not other things.
This implies to me that Venus has no standard, liquid currency. (Otherwise, why would a treasure be good to pay off your debts but not to hire someone's services?)
Is this a good assumption? (If so, it might be good to have this spelled out; it removes some confusion about the intent of the rules: a treasure or valuable commodity does not only lack inherent/standard value, but it's the combination of a specific good and the presence of a buyer - someone interested in that particular thing - which makes the opportunities/advancement rules really make sense.)