I heard Aral Balkan speak at Drupal Con in Prague a few years ago and he was brilliant. There are two types of entrepreneur, the visionaire and the builder. Aral is definitely the former.
My favourite quote from the article:
We need people who are willing to commit to longer-term solutions, rather than subscribing to the venture capital backed cycle of creating free services then having a multi-billion dollar exit in a couple of years time by screwing the users. That’s the problem. Venture capital is part of the problem. That whole Silicon Valley dream is part of the problem. It’s very short term thinking.