Greene objects both to Haidt’s Moral Foundations theory and to his prescription for a politics of complementarity. The responses to questions representing all the moral dimensions in Haidt’s studies form two clusters on a graph, Greene points out, not six, suggesting that the differences between conservatives and liberals are attributable to some single overarching variable as opposed to several individual tendencies. Furthermore, the specific content of the questions Haidt uses to flesh out the values of his respondents have a critical limitation. Greene writes,
The postmodern ideology that emerged from the convergence of these schools is marked by a suspicion that science is often little more than a veiled effort at buttressing the political status quo, and its preeminent thinkers deliberately set themselves apart from the humanist and Enlightenment traditions that held sway in academia until the middle of the last century by writing in byzantine, incoherent prose. Even though there could be no rational way either to support or challenge postmodern ideas, scholars still take them as cause for leveling accusations against both scientists and storytellers of using their work to further reactionary agendas.