When intelligence is a commercial commodity, it is only bound to happen that the rich gatekeep it to secure their socioeconomic status.
But, I think, with every revolution, hierarchies have only historically fallen only for the former serfs to rise.
The industrial revolution, the renaissance -> all were marked by an massive shift in the socioeconomic status and the rise of the middle class.
I think AGI, when it happens, will only raise equality. I may be wrong.