They will all adopt Bitcoin, just not as currency.
It makes a ton of sense for every government, bank, and corporation to embrace Bitcoin for quite a few reasons. One of the best reasons is that it provides them with financial privacy while still being able to track everyone else who has doxed accounts.
In a world where every institution can create their own token, what will the institutions trade with each other? The answer is something that no one entity controls... which is Bitcoin. This in combination with the fact that BTC is the most secure network means it will eventually be coopted by entities which need security the most... which again points to the most powerful institutions in the world as the target audience after mainstream adoption.