FWIW a good family friend of my Dad’s who is an architect put it very plainly. The marketing material eg. glossy brochure of a new apartment complex… is there to sell units.
The salespeople set up their kiosks, etc. and are set to flog as many apartments/ offices/ office towers/ industrial parks as possible.
As a layperson it thus such appears that realtime ArchiViz on the marketing side is there to move units. If it doesn’t bring in sales then as mentioned above however cool it is, fair enough, artists deserve to do things passionately, but in terms of finances, the developer, architect, marketing agency, etc. is there to sell real estate.
This is of course a cynical view and I do know the world doesn’t always work like this, but hey, “it’s the economy, stupid”.