Alternatively think of Solltass' Teapot standing rigid and tall amongst the shrubbery. Functionality is removed from the teapot, and it becomes a monument of visual significance. So I suppose an objects functionality is dictated by its size in relation to the job. If enlarged it loses its mass appeal as a functioning teapot. No one could pour it. The object out of context has a new role.
A landscape is so immense, and an object that is so contained and understood appears in total jusxtaposition within it. There is such a contrast in scale and also the level of accessible detail. The depiction of a mountain can be vague and implied, whereas a chair can be so readily slowed down and understood. Is it possible to know a mountain in the same way one can know a chair?
Taking an object beyond it's own recognisability; a bit like saying a word over and over until it means something new. The chair morphs as it is redrawn and redrawn.