One convincing liar can be countered by one person with hard data and equally good at persuasion who follows him around. One super-rich person requires another

One convincing liar can be countered by one person with hard data and equally good at persuasion who follows him around. One super-rich person requires another equally-as-rich person or enough poorer people to band together against said super-rich person. Said super-rich person also, at least in the case of the Koch Brothers, also has a vested interest in the topic at hand, whereas the equally-as-rich person or even the poorer people might not be as interested.