The play condemns those in power for not protecting the people they were supposed to, and for leading the country into war without considering whom it would affect
Mr Birling: '"The way some of these crankstalk and write now, you'd think everybodyhastolookaftereverybodyelse, as if we were all mixed up together like beesin a hive - community and all that nonsense."'
Even after the family have been taught about the consequences of their actions, Mr Birling claims "There's every excuse for what both your mother and I did - it turned out unfortunately, that's all"
Priestley uses Mrs Birling to suggest the hatred of social responsibility comes from classism and prejudice, as the upper classes didn't want to associate themselves with the lower classes
Mrs Birling is happy to admit her prejudices against Eva, saying "I don't suppose for a moment that we can understand why the girl committed suicide. Girlsofthatclass -" and "Naturally that was one of the things that prejudiced me against her case"
As a "prominent member" of the Brumley Women's Charity Organisation, Mrs Birling has a duty of care to those who come to her, but she blatantly neglects this responsibility
Priestley argues that institutions of care are run by the upper classes, who despise the poor and care only about their own status, meaning the lower classes will never get the help they need
Despite hearing of Eva's suicide, Mrs Birling says "I consider I did my duty [...] I've done nothing wrong", showing her ignorance as it was her "duty" to give Eva help, not judge her
Mrs Birling's uncaring attitude is juxtaposed with Sheila's empathy
Priestley demonstrates how the older generation are content to blame the poor for their own problems, while the younger generation understand that the lower classes are subjected to events beyond their control
The first member of the Birling family to truly grasp the concept of shared responsibility, the first to repent, and takes it upon herself to continue the Inspector's message. She represents the way society can improve, and is a symbol of the compassionate, Socialist younger generation.
Sheila does not start as a compassionate and responsible person, but is shaped by the Inspector, probably in a similar way Priestley hoped the play would shape the audience
Priestley illustrates how the upper classes have the luxury of behaving however they wish and living in ignorance of the consequences, while the lower classes are left to cope with the aftermath in silence
The metaphor reveals Sheila'sshaken state of mind and the severity of the situation, acknowledging both the Inspector's role in bringing justice and the Birlings'part in causing their own fall from grace