Steve Jobs, Mark Zuckerberg, Sergey Brin: We celebrate these entrepreneurs for their successes, and often equally extol the venture capitalists who backed their start-ups and share in their glory. Well-known VC firms such as Kleiner Perkins and Sequoia have cultivated a branded mystique around their ability to find and finance the most successful young companies. Forbes identifies the top individual VCs on its Midas List, implicitly crediting them with a mythical magic touch for investing. The story of venture capital appears to be a compelling narrative of bold investments and excess returns.

A version of this article appeared in the May 2013 issue of Harvard Business Review.