Nietzsche's man of noble soul is an egoist (the very type whom Kant's philosophy of morals would seek to rule out a priori), not in the sense that he is "selfish", but in the sense that he feels himself to be a standard, and creator of values. Nietzsche buttresses his idea of the noble soul with an account of what we might call the natural satisfactions of an aristocrat. He describes the "aristocratic value equation" as "good = noble = powerful = happy = beloved of God". The noble morality, with its aggression, cunning, strong drives, its pride, is something to be feared. Nietzsche is not describing the "good" man, at least in any sense which Kant would recognize, but rather the superior specimen, the "great man". He is not a good man because he obeys the moral law, but is a source of values, a superior man, a man born to command, to inspire fear and awe, a man whose sense of his own power is a cause of both pride and nobility.
source
John Casey, Pagan Virtue: An Essay in Ethics (1990), p. 81