Right. No one man (or small group of men) can understand, model, or control many areas of society. (Depends specifically what you have in mind here.)

But it's not incumbent on Rand to plan these areas. (Not sure if you're implying that it is.) Free market price signals do the majority of the heavy lifting, in resource allocation, broadly speaking.

To the GP, I would stipulate "state distortion free". ("State", as in "by force".)