Of course, it might be suggested that this is precisely not the case, that human beings are of the second kind, thus that the justice and benevolence we esteem are artificial and false. Foot would hold that machismo and ladylikeness considerations are artificial and false; they are matters of "mere convention", which tend to put one off the main things. As far as justice is concerned, that was the position of the "immoralists" Callicles and Thrasymachus in Plato's dialogues, and as far as benevolence is concerned, that was the view of Friedrich Nietzsche.