Julia ripped that off from Rudyard Kipling, who was wrong.
More cruel? Yes, certainly.
More deadly? BWAHAHAHAHAHahahahahahahahahahaha!!! Is this the origin of tiny grrlbossbabes in action movies beating up a collection of 240lb professional killers?
I just an hour ago watched that exact thing. A Mary Sue character divorces and SUDDENLY stops being a nurturing house wife and returns to being MIRACLE DOCTOR, PROFESSOR, CEO, MARTIAL ARTIST and RALLY DRIVER. Takes down about 8 huge guys while her assistant stands by and calls for the ambulances. Love it!
https://www.youtube.com/watch?v=BhlSPCqC9xc
After Divorce, the Boss’s Wife Drops the Act
1:41:27