There are usually devious ways to kill innocents without suffering a Rep loss.....my primary use of a certain Cloak in BG1 was to force annoying innocents (such as Ashen and Lord Binky the Buffoon) to join my party, so I could convince them of the glories of fighting Ogres. Pretty soon, they're off Tanking against Ogres for me, while I.....sit back and laugh.
Of course, in BG2, you can just gate in a Demon, but that's even more Evil. [img]smile.gif[/img]