Rationing
So the war did have an effect. Overtly patriotic superheroes* gave the troops an idealised version of themselves; not once but many times. The Shield and all who followed were literally wrapped in the flag.

[*this hyperlink points to fanboy fervour. There are mistakes in fact and grammar e.g. Doc Samson didn't have a pre-Hulk series career as an action pulp hero, he means Doc Savage. But you can't knock the enthusiasm]

But where were the grunts? (Sad Sack and Beetle Bailey came after the war so serving personnel were spared the humour of seeing the Sarge kick a guy in the heinie and send him to clean the latrines. That treat was left to future frontlines.)

Here they are, here they all are.

But, to be honest, I was looking for this link: a perspective for Retired Officers magazine.