The rational gap or Should we think in logarithms?

Having read Philip Ball's note on how french researchers have concluded that uneducated, uncivilized (nono-westernalized, you could say) aborigins from the Amazon, do not calculate in terms of linear increments, rather than logarithms has put me in little bit more than a rush. Why is that? Well, in terms of economics, our models a largely based on linear, regular increment (interval) assumptions and behaviours, which might be linked to another article, in which researchers provide a plethora of examples on how the "common mind " does not make the (economically speaking) rational decisions. Could it be that such a deep divide between our quantity perception (which seems logarithmic rather than linear) and rational economics (which is strictly linear) provides a basis (i.e.- "Mistake" theory) on which we can explain/prevent/understand our constant (at least for me) logical deviations?