As in a person of noble birth bound to a code of chivalry (bravery, courtesy, courage, moral purity, honour, and gallantry toward women)?
Bwahahahahahahahaha! Custer was a coward that preferred to attack his enemies while they slept, killing warriors, old men, women and children indiscriminately.
His casualties were caused by his greatness as a general
He died for being a pompous idiot, believing that he and his men were light-years better fighters than the red man he despised. He vastly underestimated his enemy, and his men wen decimated due to his idiocy. Sheridan and Sherman all wished to exterminate the native Americans, just as they had both opined about Southerners. Bigots and racists both. Of course Phil Sheridan would laud someone who was meeting his expectations and wiping them out. But if you really think that casualties equals greatness, perhaps he should have had a thousand more men die needlessly, then you could venerate him even more.