I do think now and then there is a similar conspiracy, but I've started to realize that a lot of the people making these decisions are acting on very short term rewards, just like any asshole with a bag of chips that he wants to eat.
People generally want the good happy thing now, while they see it and know it's ready for the taking. They don't think about tomorrow. Corporate people at best think of this quarter's profits, and how they can make this quarter look good. The quarter after is next quarter's problem.
So the people selling shovels during the gold rush are laughing their ass off that everyone wants to dig holes, and producing as many shovels as they can to get as much money now as possible.
They will hire people to build more shovels, invest in equipment to increase supply, but not too much. Just enough to make more money now. Competition might come later, and that's next year's problem. Right now, they want to capitalize on a good situation as they see it.
I really don't think they're thinking so far ahead that they want to prevent people from owning personal computers. They know they don't have enough pull to make decisions like that. If their market decisions right now lead to that, they don't care and they will do it anyway, whatever makes more money now.
They would likely see that as a loss of customers too, not as centralizing power. Right now they just can't meet consumer demand but they don't give a shit about individuals, just that they're making more money now than ever.
But now and then, I do think there's weird evil fucking conspiracies run by corporations, but you should look at who lobbies government the most when you consider that. Tobacco industry, fossil fuel industry, big pharma. They do evil long term shit.
RAM developers, probably not yet, but AI, definitely.