Combine first 4 ingredients in a bowl, and set aside.
Combine broth, basil, 2 tablespoons Parmesan, salt, pepper, garlic, and cream cheese in a blender; process until smooth. Combine basil mixture and rigatoni in a Dutch oven, and cook over low heat until thoroughly heated. Spoon pasta onto each of 6 plates. Top with tomato vinaigrette, 2 tablespoons Parmesan, and pine nuts.