I would argue that modern monetary theory has shown us that if the capacity to do something exists in this world then money is not a reason for a government not to do it.
It’s the actual resources, not the pieces of paper, that matter. Sure.
They are wrong, of course. The truth is that they cannot afford to not vaccinate the world.
But it’s not money – the pieces of paper – that’s the problem. It’s the real world resources.
Factories to pump the stuff out are being built, converted from other uses, as fast as is humanly possible. The limitation is those real world resources, not the pieces of paper to pay for them.