Doesn't help the poor million-plus that died much does it.
When society celebrates a medicine that eradicates an illness, it doesn't help all those who've already succumbed in the past... so should the progress not be acknowledged and celebrated?
When a war ends or a ceasefire is declared, that doesn't help all those who've been killed by hostilities... yet it still makes headlines.
When a serial killer is apprehended and brought to justice, it doesn't help those they've already killed, yet people are relieved and grateful for the accomplishment and consider it good news.