How does one distinguish between "marketing," a process that can be analytical with respect to consumer behavior, survey data, market testing, etc. and "hustling," which is less rigorous, and more ado about effort in generating exposure? It seems as though devs can get behind the former, once there's a product to sell, but the latter is somewhat antithetical to the general disposition (at least for me personally).

Is this really a plea to recognize that some of this isn't about a skillset as much as a temperament?