Well, she did witness an attempt on her father's life, the near murder of her brother, the murder of another brother, the fratricide of another brother, and the murder of her husband. She was inured to violence. Also, she was Vito Corleone's daughter; those genes don't discriminate.
Actually, her involvement in the family business was quite limited, but maybe unavoidable.
"Generosity. That was my first mistake." "Experience must be our only guide; reason may mislead us." "Instagram is Twitter for people who can't read."
