Until "official" degrees stop being an unspoken requirement when considering job applicants, startups such as Khan Academy will remain useful, but ultimately powerless to truly disrupt education.
This may have been exacerbated by stupid government targets to get, say, at least 50% of all pupils into university. And in at least some of those cases, you're only going because you're brainwashed into it.
I'm in my 30s, and I have quite a lot of various skills, but spotting areas of opportunity is still not among those skills.
When incentives aren't aligned with human nature, inefficiencies amplify and eventually break whichever system the government stepped in to fix.