The law you mention is very nice, on paper. In the real world, there are a very large number of people whose interests it runs contrary to. And those people control quite a bit of our social, economic, and political systems.
The LoS&D is very much "in the real world".
Free markets perform better than any other system, over and over.
A free market requires a government in order to protect rights and enforce contracts. It's not anarchy.
One that doesn't abuse the intellectual property system (e.g. patent trolling), or exploit their dominant market position in anti-competitive ways?
When deciding which system "performs better", there are deeper societal factors to consider than just return on investment for shareholders.
> When deciding which system "performs better", there are deeper societal factors to consider than just return on investment for shareholders.
Name an aspect where socialism performs better.
Economic theory around supply & demand simply describe how economies work. It does not imply that it will lead to a better life for all. In short, the "law" of supply & demand is about price discovery and resource allocation efficiency. It has no moral or ethical component that you seem to feel it implies.