If you have a hammer in your shed, are you depriving your neighbor of a hammer? Your neighbor can get their own hammer, and you'd both be better off than if you had to go rent one from the local hammer monger.
Altman is creating the RAM shortage that he points to as justification for hoarding all the RAM. It's a circular argument. If he didn't manufacture scarcity, then everyone would be able to have their own RAM.
He's the only one in this situation depriving anyone of compute power, and it's because he wants to rent it all back to them. (Yes, Musk, Zuck, Bezos, and Pichai are guilty here too).