I know what you mean, but it also highlights the word and reinforces how Bad it is, since it has slowly become more common in manga: Leading to a weakened impact due to overexposure.However you feel about her, she has several high leveled aristocrats wrapped around her little finger. Killing her isn't a good idea.
Minor nitpick, but I really don't like seeing words partially censored. It really diminishes the impact. "Rape" is a harsh word but "r*pe" is just a joke.