"…the expression “beyond good and evil” is all too easily (mis)understood. When we say of someone that he is acting as if he were “beyond good and evil,” we usually mean that, to put it plainly, he doesn’t give a damn about the good. The expression “beyond good and evil,” which has become a kind of ritornello, is typically misused—that is to say, it is used to refer to what would be more correctly referred to as “beyond good.” In other words, it is employed to describe a space where, although the good is no longer taken into consideration, the evil and fascination with evil are still very much at work. In this context (and if we follow Lacan’s thinking to its logical conclusion), even the scandalous Marquis de Sade got no further than merely transgressing the good. In de Sade’s literature, the victims not only remain beautiful throughout the horror to which they are subjected, but even gain in beauty during this process: right up to the end, a sublime beauty “covers” the bodies of the victims, even in their naked exposure. Lacan’s point is that there are walls and defences that humanity has erected as shields against the central field of das Ding (connoted as evil): the first protective barrier is the good; the second is the beautiful or sublime. This is where the intimate link between sublime beauty and evil (or danger) originally springs from. Nietzsche himself develops the idea that, by transgressing (or being indifferent to) the good, we enter the domain of the sublime, although this does not by any means imply that, for all this, we are effectively “beyond good and evil."
Alenka Zupančič, The Shortest Shadow: Nietzsche’s Philosophy of the Two