By that logic, doesn't a hacker lack the skills that designers and only designers possess?

The whole dichotomy is silly. A tech business needs to figure out what to build, to build it, and to sell it. (Not strictly in that order.) Every one of those steps requires cross-functional thinking.

Are you saying that the two are mutually exclusive? "I suck at design" is an excuse, and the technological equivalent to "I'm just bad at math."