When I think about Photoshop it is so tied in my mind to its history as an offshoot of ILM and the VFX industry https://en.wikipedia.org/wiki/Adobe_Photoshop#Early_history

ILM's famous t-rex scene from Jurassic Park contains very little text/dialog, but emotional, expressive, synthetic imagery: https://www.youtube.com/watch?v=Rc_i5TKdmhs

In this case the scene is not made up of "generative" images in the current definition of the term, but synthetic images generated from polygons, virtual lighting, etc. It seems that there could be artistic utility to manipulating text in a similar way.