Choice means competition, and competition drives progress. Choice can also drive changes within society, for if people know a better or more secure way of doing things exists, why would anyone want to stay trapped within the confines of a limited system? At the very least, people should be allowed to choose economic mechanisms that work best for their particular situation.
This is NOT how our society functions today, and free market do not exist anywhere in modern nations including the US. Whenever I hear someone (usually a socialist) blame free market "capitalism" for the oppressive ailments of the world, I have to laugh. The alliance between governments and corporate monopolies (what Mussolini called national socialism or fascism) makes free markets utterly impossible. What we have today is an amalgamation of socialist economic interference and corporatocracy. Our system is highly restrictive and micro-managed for everyone except the money elites, who do not have to follow the same rules the rest of us do.
Of course, I might be preaching to the choir when it comes to these issues. But, there are some underlying developments being pushed forward by globalists hell-bent on a one world monetary system and a one world government that even many liberty activists are not fully aware of.
In alternative economic circles, the US dollar is seen as the end-all-be-all of fiat currency dominance. Many activists see it as the key to the power of the global elites and they think the Federal Reserve is the top of the globalist pyramid. This is not exactly true.