the problem with the 'greedy opportunism/issue there own crypto' paradigm, is that it will still lead to decentralized money, ergo a loss of power.
Controlling the money has nothing to do with money. All to do with control.
If the masses get it into the their 'collective psyche heads 'that we don't need centralized governments money, then they will still - ultimately- lose the control they crave.
(a psychological perspective, not money one)