This important remark shines a spotlight on a widely known but rarely discussed fact: an important percentage of all commodities produced worldwide are not brought to market by the producer but by little-known and partly unregulated traders. These traders either 'do God's work' by bringing much needed commodities in time and to the required quality to where it is needed, or they are 'bloodsucking speculators' needlessly pushing up prices for the consumer and depriving producers of their just remuneration. It depends on who looks at their activity.
Where more and more experts and an increasing number of governments agree is on the necessity to better know, regulate and where necessary police these trading activities. This should preferably be done through international agreements.