I also think it is no point to buy gold to fight the cartel, even if you wanted to buy gold you would typically not buy physical gold but end up with paper gold, as most bankers would recommend to you as these are derivatives and highly compensated (big comission check for the banker) compared to physical gold.
Why would you go to a banker to buy physical gold?
Thats what bullion dealers are for, hand over the cash and walk out with the metal.