I think while all mothers deal with feelings of guilt, working mothers are plagued by guilt on steroids!
Guilt is one side of a nasty triangle; the other two are shame and stigma. This grim coalition combines to inculpate women themselves of the crimes committed against them.
Great is the guilt of an unnecessary war.
When I fell in love, all the shame and guilt I carried with me for years suddenly vanished.
Kids are pretty resilient. You don't have to be at every volleyball game. We can't guilt ourselves.
Now, of course, the great thing about the solar system as a frontier is that there are no Indians, so you can have all the glory of the myth of the American westward expansion without any of the guilt.