Someone told you that you had to decide between having 1,000 random people die, or having a place filled with countless works of art, and with priceless historical value be totally destroyed. Think Westminster Abbey, The Louvre or the Valley of the Kings and everything inside them be totally destroyed, or having 1,000 randomly selected people, from the Dalai Lama to Charles Manson to even yourself be killed.
Which would you chose?
Honestly, I'd prefer for history to survive rather than people. Everyone will one day die, but these things can never be replaced.
What if it was 5,000 or even 10,000?