I very much want to believe that The Heirs is a satire of a wealthy family, who inconveniently discovers, after the death of the father, that he had a second family on the side, but I am not so sure. And the blind assumptions pile up: children with moderate academic ability will go to Princeton, because, legacy. We will purchase vast apartments side by side to house our biological child and mother (long story!) because, inherited money. We will actually purchase an entire hospital wing, also because, money, inherited. And obsessively track the genealogy of anyone we meet so we can position them within the limited 400 families that count.
If it comforts you, read the book and see that the rich do have similar (if better hidden) problems with their wives, husbands, ex-boyfriends, children, and themselves.