In his 2006 work On Political Equality, the great Robert Dahl tells us why:
“I want to suggest instead that what actually drives the search for fairness is not pure reason but emotions and passions. Reason may serve to guide action toward justice. It may (and I believe should) assist us in choosing the most efficient means to good ends. But what impels action are emotions like those I’ve already named, which range from compassion to envy, anger, and hatred.”
1) Definitely. Wonks are less important than they (and we) think.
2) Cf. Hobbes on the relationship between Emotions/Reason.