I didn't find the reasoning in this article very sound and the heated "high school angst" quotes hurt its credibility. e.g. "These products feed and profit from our bovine adoration of mindless time-wasting." That said, to address her point, I don't understand why tech start ups would be the answer to everything, especially a complex problem like homelessness. Homelessness isn't going to be solved by some RoR hacker…
"Homelessness isn't going to be solved by some RoR hacker creating a website that matches the homeless with available space. Rather it is the challenge for social workers, mental health practitioners, etc." I think you're missing the larger point: when the best and the brightest technological minds are chasing the instant riches of social networks for dogs, they're not creating new antibiotics, energy efficient cars,…
Like you I am a hypocrite in that I know this and I do what I do anyway. But it's only partly for the money; the other part is there just aren't the jobs to do this out there. A lab or whatever would rather have a grad student hack something up on the side than hire professional developers (and fair play to them, they've discovered a way to get smart people to work for peanuts, but with the best will in the world, someone who got into this to be a biologist is going to see administering a database or whatever as a chore that gets in the way of their real work, and they're not going to do a fraction as well as a professional).