Minor quibble with the rant. Even under feudalism consumer protection laws were a thing. Particularly when it came to standards of "what" something is, as well as the weight and measure of currency. For example, in 13th century England,
the King decreed the Assize of Bread and Ale, which set the standard of weight for a loaf of bread among other things. A baker could not get clever and say its a standard loaf, charge for a standard loaf but then skimp on the ingredients to make it lighter. Nor could be substitute the standard ingredients with cheaper stuff like say, sawdust.
Medieval Guilds would also set standards throughout Feudal Europe over what constituted a thing, be it leather, bread, glass, whatever in order to prevent charlatans selling fake or dangerous goods being held out as the real thing. There was also a major Christian component to this perception of economics, in that it was considered immoral to lie about the contents of your wares. People still did it of course (hence the need for the laws and regulations), but there is a very common misconception that prior to the massive regulatory bodies that were created in the early 20th century all trades were rife with corruption and shoddy work. Which is completely untrue, and common propaganda by the modern States themselves to justify their massive beaurocracy.
The issue the modern nation encounters is that due to industrialization, a single bad actor can cause damage at scale, effecting way more people then a medieval baker mixing sawdust with his flour.