Well, it's of no value of them. They build a several km-long building in the desert just for the lulz.

Why no give it away just to have a foot in the door, that tech could come in very handy one day.

How can you not make money, especially if you want to be in the business of making and selling chips? If you have that kind of $ you had better be getting returns. In fact, the more $ you have, the easier it should be to get returns. Such is capitalism. Main risk is on technical and execution, tough to bootstrap a chip maker.