•Why it earns a slot
Why it earns a slot: Wharton runs a marriage-market novel to its logical, unsentimental end, letting a woman who understands the rules perfectly lose anyway, because the one rule she won't break is the one that ruins her.
A beautiful, broke socialite spends a decade calculating the perfect marriage and loses everything one honest choice at a time.
This distillation is written from the freely available original, which is always the better read when you have the time: Project Gutenberg.