I wouldn't say it's his fault. He's not doing it for charity, sure, but it's not his fault that the prices are insane. He's not forcing people to live there.
People double their money where I live renting places for $350/bed. People either can't afford a whole place to themselves or don't want to risk the hassle of renting an entire place and subleasing it, so they rent, realizing their combined rent is making a profit for the owner. It's just arbitrage.
> He leases the bungalow from a Chinese venture capitalist for about $6,800
That is just insane.