Well, Nadja Lind is fairly well know, I think. She has performed for many years now, and played in clubs in New York, at the Burning Man festival and so on. So she is not a amateur any more. And Also on her label Lucidflow the has some real good stuff, for example from Helly Larson (who died much too young some years ago).

But as you say, electronic music (of the various kinds) is a niche genre. There are people who love it, but most others dont know it.
And there are a lot of people who make electronic music (and some are really good) who remain widely unknown. Its also, I assume, because its a music that is made mostly at home. There are not so many concerts where much of that music would fit into, especially when it comes to the more experimental, ambient and drone stuff.
For example, have you heard of Altus? A Canadian guy who makes excellent sounds, and that since many years.

Or have you heard this before?

Or that? The soundtrack by Starward Projections, for the best video ever.