there are two types of uses of the "humor" technique of sarcasm
one is that of the humor of psychopaths and sociopaths belittling their opponents
the other is that of the oppressed individual who doesn't give a fuck about being punished because their life is meaningless due to their oppression by psychopaths
this is a distinct type of humor from irony, which is self deprecating, and is usually easier to detect due to the divergence from the normal character of the individual
whereas sarcasm is usually expressed deadpan and is not funny when the one using it is actually a vain and cruel individual
psychopaths can't tell the difference between sarcasm and irony, non psychopaths can