I understand the point here, but I disagree with it completely. Let people build what they're passionate about. Fund passionate people. If there's a market for the product it will be successful. If not, the investors made a poor decision. The money went into the ecosystem, it didn't disappear, it wasn't wasted.

We hear a ton about the venture firms that fund internet and software businesses because of what we read and pay attention to. Because we don't hear about all the bio-med and energy companies on TechCrunch or HN doesn't mean that they're not out there building the exact same products and getting funded by VC firms specializing in that space. They are getting attention, you're just not looking in the right places to see it.

All I've been reading lately are opinion pieces on what people should and shouldn't be doing with their lives, their businesses and their talents. If you're so passionate that you need to tell everyone what to do, quit complaining about about what should be happening and go make it happen.

Edit - Plus the author is currently head business development at Alphonso Labs, which develops iPhone, iPad and Android applications. What sense does that make? Quit making apps and do something else, but I'm going to keep working for a company that makes apps?