Can anyone explain to me how OlympusDAO is NOT a pyramid scheme?

I've read so much about this protocol, and myriad of others who have cloned it, and I cannot for the life of me fathom how this ends in anything other than a disaster.

The only use case for Ohm is to stake and earn more Ohm, with the whole ecosystem dependent on fresh rubes to buy and stake more Ohm.

Am I missing something? Am I completely out of touch with how this works?

Could someone explain to me the utility and long term benefit of the OlympusDAO protocol?