This is a great quote, but even moreso than Custers and Lees I feel like we need someone not so much on the front lines, but someone to win the whole war - maybe Lincoln, but my knowledge of the American Civil War is poor. Preventing death from most relevant causes (aging, infectious disease, etc.) seems within reach before the end of the century, as a conservative guess. Hastening winning that war means that society will no longer need so many generals, Lees, Custers or otherwise.