I think <a href="http://www.ribbonfarm.com/2009/08/06/on-seeing-like-a-cat/on-trail/the-way-of-the-sociopath/" rel="nofollow">http://www.ribbonfarm.com/2009/08/06/on-seeing-like-a-cat/on...</a> is a more insightful analysis of the cat/dog dichotomy. There's nothing particularly cat like or dog like in the roles described in the linked article.