[H]euristics provide explanations of actual behavior; they are not normative ideals. Their existence, however, poses normative questions.

Gerd Gigerenzer, ‘Moral Intuition = Fast and Frugal Heuristics?’, in Walter Sinnott-Armstrong (ed.), Moral Psychology, Vol. 2: The Cognitive Science of Morality: Intuition and Diversity, Cambridge, Massachusetts, 2008, p. 5