This so-called currency was a contract between the owner of the property and the exchange market; it was essentially an agreement between all owners.
The Continental Hotel's gold coins naturally also had their own basic currency value.
It was an "interpersonal" exchange contract, and a mutual agreement between the High Table and numerous participants.
Just like how a country couldn't churn out money excessively without causing the economy to collapse, the Continental Hotel's gold coins couldn't be produced casually.
Every gold coin required a person to contribute something in service to the underworld.
Hence, the Continental Hotel wasn't a platform for hitmen, but an underworld business platform with broader significance.
Assassinations were just one of the services it provided.
Other professional services such as arms, equipment, intelligence, and various professional items could also be purchased with gold coins.
