Markets are always regulated. SOMEONE always has more leverage than the person they’re competing with, and uses it to their advantage.
In a pure laissez-faire market economy, the people who control the means of production have absolute domination over prices. This is no different from a pure socialist/communist society, where the state controls the means of production. It’s the nature of people to take as much as possible. Nobody cares about absolute wealth, but only about their own personal wealth in relation to the wealth of others. One function of government (and rightfully so!) is to regulate all of this pandemonium, and ensure that neither side of the production/consumption equation can dominate the other, and more people have room to prosper.
Free markets are not “free”. The only question is how much the government intervenes in the market. Even if the government doesn’t intervene at all, some group of people somewhere are using their influence to keep wealth away from one group of people and give it to another, which is the same thing a government does to a regulated market.