Scenario A: A State actor, by way of the money printer, prints infinite amounts of fiat, and uses it to pay mining pools to exclusively mine empty blocks. 
Block space available for economic bitcoin transactions evaporates, and for many, bitcoin becomes unusable. 

Scenario B: A State actor, by way of the money printer, prints infinite amounts of fiat, and uses it to pay mining pools to fill blocks full of jpegs…

In terms of functional outcome, what is the difference between these two scenarios?