@bythewell - One of the things about modular art I've always liked is that it can make it possible to make art out of ordinary objects. Warhol was very interested in doing that, although he didn't always use the object itself, but often just its image.
He managed to help some people look at the world differently though, and I think in some ways that's the highest calling of the artist.
Then there are the modular artists who use actual objects to create an image. I'm thinking particularly of the ones who use food, like toast or even skittles to create patterns or faces.
That is often called pop art as well, and maybe it is, but again it can make you look at the world differently. Sometimes a burnt piece of toast is just cooked bread and sometimes it's the nose of a president.
It's all in the way you look at it, I suppose.