Things do start from something, and I could give quite nice example. Some years ago, there was guy who had been visiting my store occasionally. Always looking for old vintage recordings, blues, jazz,.. things I usually do not have, but occasionally 2nd hand LP's may come. He had been only buying man & guitar type recordings, and had no history in "metal" or "punk" or such. One day I am listening DIESEL GUITAR CD and he goes "what is THIS?!". Never heard, or knew there is things such as "guitar drone". He buys DG stuff, returns in few days and asks is there something else that sounds like that. I sell him Haare. He likes it a lot. After some drone releases, he quickly progresses into total harsh noise. It was matter of months, without prior relation to the "typical underground scenes". He became one of the most active harsh noise buyers locally, and remains so still today.
I never thought "No scene" would be valid excuse to not make something. Someone got to start it, and in truest form of DIY, one can't expect it is "the others" who'll have to do it. Getting noise act to play among noisy hard metal or wild hardcore punk can be easiest way to get things started. Some will hate, but you never know if it will be the birth of something new.