We still arrive at concensus based on a (more or less free) market. Weights on this market are heavily skewed to the top, that's true. And as I said, democratic votes also don't exactly live up to the cultural standard that we at least say we have. But in general, we're very far away from a planned economy.
The market may be more or less free, but the distribution of information is not equal or even. That is one of the most important factors that prevent actors from making efficient decisions.