Ok so first of all: I am truly sorry that the world is hard for you. I think its really critical for your well-being to understand that even if you are very assured at how smart you are, you are never too smart to talk to a (lesser IQ) professional of any sort; namely one who can help you navigate your thoughts and problems. Even if I can't convince you of anything else, just try to see how a third-party alone can be helpful in matters of the squishy mind. I see lots of people like you who don't get the help they could get because they feel for whatever reason above it, and it seems like your world view is really ripe for some nasty repression. You must understand your high-IQ as a symptom, not a cause.
Now a little bit cheekier advice. Let me help you make an argument for your position against someone like me, because I really didn't see how I was to be convinced that this thing we are talking about is "substantial" enough to reduce any which way. The only way you can really argue with my position here is to take the point of view that "intelligence" is something like a metaphysical category. It doesn't have to be exactly that, but the important thing is that intelligence is more something "justice" than it is like "phenotype" or "language" or "neuron". You simply cannot be a materialist and also hold the fundamental nature of something like "intelligence," I wont insult you by filling in the dots there, but just know you are committed to a bit of woo-woo when you want to go all the way like you are (which is fine, I like woo-woo, just not in this case). You want, at the end of the day, for the brain to be more than an organ, but a truly teleological entity, which by chance has now touched upon something "substantial". Its a rough argument to make these days, you would of done great in the Enlightenment though :).
Also, what I believe you were trying to get at with the Tesla/Edison thing is this idea that Edison manifests my point of view because he was more successful in like the capitalist sense than Tesla. But that is just surface level here, and not at all what I am saying. I would come back and say "no, those are simply too people we are now calling intelligent, for different reasons." Intelligence isnt about results, its about certain things that we value (at a given time). And I am not quite sure even how you want to make your point here, we all generally consider Tesla as a very intelligent man these days, people even did back then!