All the plays of Shaw deal with some problem concerning modern society.
Widower's House
he put the blame on society, and not on the individual landlord for creating abuses of the right to property.
Getting Married
he showed the unnaturalness of the home-life as at present constituted.
The Doctor Dilemma
he exposed the superstition that doctors are infallible.
John Bull's Other Island,
the hero talks exactly like Shaw, and the Englishman represents the worst traits in English character.