You guys are both right. The point really is that prior to hitting a career grand slam (a Tractatus Logico-Philosophicus, a "On the Electrodynamics of Moving Bodies") one can find oneself in a menial job where one is looked upon as an unfulfilled genius. There's nothing to say that this Target employee isn't writing the next great American novel in his spare time.

In summary, the "menial" job in and of itself should not be seen as a failing for the genius.