I'm extremely careful about the effect of spells and effects on the economy. D&D is written as a game for adventures, often in dungeons, and everything in the game is described from this point of view. Spells and effect that affect the economy are simply outside the scope of the game. A few spells, like Plant Growth, have an economic function mentioned, but that's more like an accident of design.
Still, some of my players love this kinds of effects, and look out to find just these - or magic to enhance the bards performances and other effects well outside the scope of the game as written. Its one of the issues we have with 5E as a set of rules. Not sure I will continue with 5E (or 5.1) after finishing the current "test run".