Where rationality left only emotions rule, and populists know damn well how to use people's fears and other negative emotions to to milk them for either money or power... don't expect solving this would be so trivial, its more on the evolution of mankind as whole scale, or at least massively improving education with strong focus on less intelligent part of population
Corporate marketing departments have been pretty adept at promoting their products on the backs of this science. They are far from unintelligent. Populists, for all their deficiencies, are fairly adept at eventually detecting marketing ploys and gimmicks.
