They aren't designed to produce hair-raising moments of personal revelation or peel back sinister motives. The key here is not the details but the universality of the underlying issues. Different or not, richer or not, they also have families. The difference in rich families, though, is in the Carnegie or Mellon scale of their disagreements. When millions or even billions of dollars are involved, often it's not just the family that is affected.
Many wealthy families have philanthropic foundations set up to channel money into worthy causes.
So family decisions can have a profound impact inside and outside the family. Money just amplifies, really turns up the volume on, the communication problems that families encounter. Olivia Boyce-Abel should know. Members of her family sued and countersued one another for 13 years, striving for control of her mother's large estate. I honestly believe that if my family members had experienced one of these plays, it might have changed things dramatically.