Impudite Dissonance: Inaction condition?

[JCurwen3]

The Impudites gain dissonance when they "personally [kill] a human - through action or inaction".

What does it mean to personally kill someone through inaction? I can understand deliberately not administering the antitoxin to a poisoned dying human, or not lifting them to safety if they're dangling off of a cliff about to fall. But what about a case where someone (seemingly a much weaker mundane) is about to kill a human in a way the Impudite could easily stop without causing any real threat or harm to itself, but it decides not to be the "good Samaritan"?

And can an Impudite order or request that a human be killed by another human or celestial? He wouldn't be personally killing the human through action, but after making the request / order, he'd be killing them (very personally) through inaction by not rescinding the hit. It'd be odd if an Impudite couldn't order a hit without causing it dissonance though, since Mercurians can do this (despite how out of character and in bad form it'd be).