What's affordable to Silicon Valley software engineers is not affordable to the people who clean the bathrooms...work at Subway...morning mocha.
The time of those people is far less valuable than the time of the engineers. If someone needs to waste an hour commuting, it's much better for it to be the barista than the engineer.
It's certainly good for you that you get to occupy this apartment and prevent facebookers from moving in, but how does anyone else benefit? Is the coffee you produce somehow more valuable to society than a new facebook feature?