> Usually the strongest opponents of these controls and regulations are the giant players

That’s only partly true. The other side of it is that many of these regulations also ensure that the giant players remain firmly entrenched. As an example, it is illegal for me to go directly to a dairy farmer and buy a gallon of milk directly; it has to work its way through the entire supply chain first, even though the producer is running his operation in compliance with all food safety regulations (otherwise his milk wouldn’t be allowed into the supply chain anyway)

Edit: or, before the Wheat Board was torn down, a farmer couldn’t directly sell his wheat to the grain mill down the road (or across the border), it had to go through the CWB. This kept a lot of middlemen very happy.