Is extravagance immoral? One of the world’s most expensive sandwiches has divided social media. Some call it an outrage, but others say everyone benefits when the rich splash the cash.
The sandwich that some people pay £28 for

Glossary
Harrods - A large, expensive department store in London.
Jean-Jacques Rousseau - An 18th Century Swiss philosopher whose book Reveries of the Solitary Walker extolled the virtues of being alone in nature.
Effeminate - A word used to describe men who act in a way stereotypical to women. It has been used as a derogatory term.
Adam Smith - An 18th-Century Scottish economist often known as the "father of economics".
Bernard Mandeville - A Dutch-born philosopher who lived most of his life in England. His most famous work is The Fable of the Bees, in which he argues that immoral behaviour is good for the public.