Earlier quoted context omitted.
No, the point of a futures market is to have a reliable supply which matches demand and allows everyone who works to produce and use a given commodity to have a reasonable expectation of demand and how production should be matched to it. Goldman-Sachs should _not_ be inserting themselves into profiting on the poor's daily bread. https://theecologist.org/2011/sep/13/how-goldman-sachs-start...
the point of a system is what it does. if the futures market lets a bank make money off bread, thats the point of it
Accurately and fairly pricing risk is a whole field in its own right, one whose surface I have only lightly touched upon in my life by learning of actuaries and Black-Scholes. Free lunches don't tend to last long in finance, which means all profit margins everywhere, from share dividends and growth, to tresury bonds, to futures, to mortgages, tend to similar risk-adjusted real return.