But that's stuff that people like Calacanis and Loic Lemeur HAVE TO DO.

They aren't engineers, or designers, so spreading the word on the product, and establishing contacts, it's pretty much the best they can do to help their startup instead of sitting around all day watching others work.

Nonetheless, social skills, or the simple ability to stand out fast, do play as much as big a factor in the success of an endeavour as engineering.