If nothing else, it shows that crypto has succeed in one of its goals: moving money between countries, without being detected/hindered by governments.
I mean, I don't know who buys real estate with crypto, but I am assuming that people who live in dubai and have large crypto values are bullish on crypto, and won't waste it for a low roi investment like realestate. So that leaves rich foreigners who wants realestate away from their own government and I can see them purchasing bitcoins as a way to siphon money out of their country.
Other than that, I am also out of ideas for useful uses of crypto currencies