I recall reading that. It's all very true, but it also glosses over the fact that some people acquire money through regulatory capture, violent crime, inheritance, etc, etc.
I think capitalism is the best system we have, but Atlas Shrugged espouses a rosy picture of anarcho-capitalism like Marx espouses a rosy picture of anarcho-communism that doesn't work when real humans come into play.
I've come to believe that having market forces bring out the best in society is a state of constant work to cultivate those forces in a human direction.