People often imagine things they don’t do can’t be that hard. Marketing is important because no one will be interested in your product if no one knows about it. Being able to envision products that the average person will want is another one that good business leaders often do.
Steve Jobs, for example, was very good at envisioning what people would be interested in. From the Apple to Macs to the iPod to the iPhone, he hit a lot of winners. This isn’t an endorsement for him owning the company, or even as a person, but he undeniably had a skillet that others around him often lacked.