One downside of a democracy is that special interests can gain power and distort the system to the benefit of the few rather than the many.
In Atlas Shrugged, Rand shows how corporate interests run amok can lead to very bad outcomes, and she creates a moral argument for capitalism -- as compared with crony capitalism.
Your own views would be summarized as pragmatism, which I think is inevitably the way any policy gets implemented.
However the purpose of philosophy (which is what Atlas Shrugged is) is to enable the mind to think about a broad system of beliefs and their consequences logically, and to outline the purposes, goals, desired ends, etc.
The same could be said for the communist manifesto. I respect both works as solid philosophical texts, as they provide ample fuel for critical thinking about the issues.
What's interesting about the comment about "running the world" is that it does suggest a world view very biased toward central planning, and so it's hard to take any conclusion that follows from it as unbiased.
Many similar biases exist all over the place... the idea that wanting federal dollars to be spent on x implies support of x and not wanting federal dollars to be spent on it implies opposition to it is one example.
Notably, Atlas Shrugged is more of a treatise against crony capitalism than it is against socialism.