Custer was probably not a 'scumbag' just a military man who was following the orders of Sheridan who no doubt was dancing to Shermans tune who in turn reported to Defense Dept.
It is easy to be brave in a liberal society than in a totalitarian or authoritarian one.
Story from the XX Congress of the CPSU (1956):
Khrushchev, the First Secretary of the All Union Party, who under Stalin was political head of the Ukraine (1938-49) was addressing the congress:
To their amazement he started to attack and denounce Stalin when from the audience came a loud shout,
"And what were you doing whilst all this was taking place comrade?"
Khrushchev immediately stopped his speech and scanned the auditorium trying to identify the heckler; he gripped his lectern and roared "Who said that?"
Not a sound was heard from the congress.
Then Khrushchev said quietly "And that exactly is what I was doing too comrades."
"I'm not brave enough to be a coward." Anon.