I think your percentage might be off by a decimal, make it 0.5% and broligarchs. Maybe that's why they've gone crazy with spending trillions in the AI bubble, trying to position themselves as far up the chain as possible. 99.5% of humans will be wasted resource sinks to them and seen as "unnecessary"
I think that's really unimaginative and not thinking about it right. If you control the basic resources and own the tools needed to convert those into whatever you want, why does the "economy" even matter? If you can get anything you want without needing anything from the other 95% of people, having "consumers" in the sense you're thinking doesn't matter any more.