Full Idea
In the case of humans killing is the more blameworthy the more virtuous the victim is.
Gist of Idea
Human killing is worse if the victim is virtuous
Source
Buddhaghosa (Papancasudani [c.400], 9.7-10)
Book Reference
'Buddhist Scriptures', ed/tr. Conze,Edward [Penguin 1959], p.70
A Reaction
This sentiment has almost become a taboo in western society, and yet it is present all the time. The greatest outcry is about murders of really good citizens. Occasionally the murder of a villain causes little regret.