I can't help but feel every time someone says "people don't understand the free market" its people who can't understand anything past the most simplistic explanation.
I'm going to leave you with a quote from Adam Smith who most would say founded the field of Economics.
> The interest of the dealers ... in any particular branch of trade or manufactures, is always in some respects different from, and even opposite to, that of the public... [They] have generally an interest to deceive and even to oppress the public ... We rarely hear, it has been said, of the combinations of masters, though frequently of those of workmen. But whoever imagines, upon this account, that masters rarely combine, is as ignorant of the world as of the subject. Masters are always and everywhere in a sort of tacit, but constant and uniform combination, not to raise the wages of labor above their actual rate ... It is not, however, difficult to foresee which of the two parties must, upon all ordinary occasions, have the advantage in the dispute, and force the other into a compliance with their terms.