I know in my case, the A in STEAM stands for Anthropology, the study of Humans, very encompassing, Art a tiny subset.
I use the A to intersect with PATH: Philosophy, Anthropology (right here!), Theater, History.
Yes, Theater (includes politics) and History (what's been happening) shmoo together with the others, but then lets not pretend STEM -- let alone STEAM -- isn't all shmooed together too.
Put it all in a blender for a Universe, to drink and forget.