When Nietzsche praises egoism it is always in an aggressive or polemical way, against the virtues, against the virtue of disinterestedness (Z III "Of the three evil things"). But in fact egoism is a bad interpretation of the will, just as atomism is a bad interpretation of force. In order for there to be egoism it is necessary for there to be an ego.
Gilles DeleuzeThe aim of critique is not the ends of man or of reason but in the end the Overman, the overcome, overtaken man. The point of critique is not justification but a different way of feeling: another sensibility
Gilles DeleuzeThe various forms of education or โnormalizationโ imposed upon an individual consist in making him or her change points of subjectification, always moving towards a higher, nobler one in closer conformity with the supposed ideal. Then from the point of subjectification issues a subject of enunciation, as a function of a mental reality determined by that point. Then from the subject of enunciation issues a subject of the statement, in other words, a subject bound to statements in conformity with a dominant reality
Gilles Deleuze