Many folks seem to dislike Mr. Gates passionately. I don't care. American antitrust law is not a tool for forcing business people to behave in a neighborly or avuncular fashion. What matters is how well a business person and his firm satisfies the demands of consumers. And, incidentally, nor is it a sign of illegal or even improper behavior that Mr. Gates is aggressive in his talk and action.
Aggressiveness is part and parcel of the competitive process.
The standard for assessing the social utility of any firm's aggressiveness is the effect such aggressivness has on the well- being of consumers. The well-being of rivals of aggressive firms is of no relevance per se.