It does what he wants it to do. Other people are investing in it because it does what they want it to do.
You may be applying your own philosophy onto a company as a value judgement. A company is merely a legal structure for cooperating people who have a specific goal. It doesn't need to DO anything other than whatever those people want it to do.
I agree that it's only possible within the context of a fucked up fiat system, but that's just reality. I also agree the model would go away with a Bitcoin world. But they'll still have the Bitcoin they bought. That's my main point. They may get no more, but they already have a huge amount. The company will have served its purpose and dissolve I suppose.