My two penny worth to this "interesting" topic.
Industrial, Power Electronics, Noise, Harsh Noise, Harsh Noise Wall. The difficulty with categories, though useful, is that now (post Aristotle) categories blend into each other. Yet there are obvious differences at some point. I think this occurs in the 'music' of which we are discussing here, but, and this might help, it is not a unique phenomena. So whilst Expressionism in art was very much about the human (negative) condition, and could be seen to relate to Industrial and PE, Abstract Expressionism which 'evolved' from Expressionism was not, or became not. The Jackson Pollock fields of colour are more cosmological that anthropological, yet derived in his work from his paintings of human conflict. Likewise serialism was 'expressive' of a human condition, but likewise became abstracted. To the extent that this art expresses nothing. Ad Reinhardt's famous "Art is Art and everything else is everything else". And similar kinds of things occurred in Poetry.. and so called minimal art, and minimalism in music.
Noise (IMO) when not modified to express is no different to such extreme (Ultimate) paintings. And so whilst a white Malevich might be thought 'mystical' is it any different in its communicative ability than a white Rauschenberg or the First Communion of Anaemic Young Girls In The Snow - Alphonse Allais...
So whilst Industrial or PE artists can by manipulation of sound express stuff, at the limit of pure noise, sans difference, nothing can be expressed, except perhaps 'being'. (which i guess is where even Vomir fails)
P.S. (The rift!) That minimalism was considered better than what went before, like maybe noise was / is considered better than PE, was its 'purity', less is more of modernism. But to quote The great Noddy Holder, Moma we are all crazy now....