What I'm saying is that, Bible parables notwithstanding, it's not the individual ant that achieves these incredible things. The bulk of computational/cognitive work is done by the colony as a system. This means that there's little sense in comparing brainpower of an ant with that of a human. A more informative comparison is that between an ant colony and human society - here, humans may come out badly, but that's arguably because our societies are overcomplicated in order to compensate for individual humans having too much brainpower :).