This strikes me as a deeply sad view of the world. As an individual, a well-rounded education is a life-enriching thing, even if it doesn't directly tie into your professional career. As an overall society, having a more highly-educated populace is a net positive for everyone.
> It used to be that most writers, painters, historians, etc, etc, had to also have an useful day job.
And if you look even farther back in time, most artists were supported by a rich patron who believed in the value of art.