Brideshead Revisited offers a view into the world of British aristocracy in the 1920s and '30s. Titles, rank, and the obligations that go with them threaten to determine the course of each character’s life. Wealth in particular is a focus of the novel, especially the vulgar extravagance of the British upper class which is repeatedly compared to the natural beauty of places like Morocco, Tunis, or South America.
Lady Marchmain uses religion to mask her classist discriminations.