We must convert all wealth into the measure employed by mankind for 6,000 years, i.e., ounces of gold.
There is no reason to abandon an economic measure that has worked for 6000 years. 
mnli hypothesis: There is no reason to abandon an economic measure that has worked for 6000 years.  premise: We must convert all wealth into the measure employed by mankind for 6,000 years, i.e., ounces of gold.