Business is business and capitalism is capitalism.
Microsoft happens to be the 800-pound gorilla today. No one complained too much years ago when Gates funded a conference on CD-ROMs in computing back when CDs were just beginning to be sold for music but were a rarity in computer usage. He used his money to lead the industry without any monopolistic benefit to Microsoft. The 'problem' may be that Microsoft has so much money beyond what it needs for reinvestment in itself that it must look for other investment opportunities. My point is that we have to look where we are now.