widowers' houses

:confused:
Widowers' Houses is a simple play , but what is the purpose behind it ?
why G B Shaw is known as " anti every thing"?
thanks

G. Bernard Shaw purpose in writing Widower's Houses play is not to entertain his audience but instead to raise awareness of social problems and serve as a criticism of capitalism. discuss this statement in the light of his first play Widower's Houses' major themes.