Well, the OIC for Abu Ghraib didn't get court-martialed or relieved for dereliction of duty; did they? It was a case where a systematized culture of impunity for bad acts was condoned until it became a public relations issue; at which time only those at the lowest level were publicly punished; and the responsibility for allowing such a culture to flourish was never properly accounted for.

As with much of American society these days, the application of justice is capricious and unpredictable; with the signal exception being that the upper echelons suffer fewer consequences than the grunts who do the work.