That isn't the plan. Person computers are still available, but ram production didn't match demand.
Also billionaires don't have a billion dollars so they don't effect you. Their wealth is stocks that only home value because you keep buying them. If the bubble pops those "billions" disappear.
It's because that is the end game of upvote/downvote communities.
All is them become whatever gets engagement. Enjoy lemmy while it's good, but if we get big it will only be a few years until we are the same.