We are ruled by our judges. They decide what they want to decide.
This reminds me of what happened to the Barnes Foundation near Philadelphia. The benefactor in that case owned a massive art collection and when he passed on he left very explicit instructions in his will about how the pieces in said collection were to be managed. To summarize, the paintings (many considered priceless) were "not to be moved from the walls."
The city of Philadelphia soon decided that it wanted this collection to hang in a museum in the city so it could serve as a tourist attraction. The city sued, and ultimately succeeded in, getting a judge to throw out the will and allow the city to do with the collection what it pleased, even though the benefactor's estate wasn't located in the city itself.
We don't have judges anymore... we have kings. It is disgusting. As far as I am concerned, a will is a will. If you get cut out, well the lesson here is... "don't piss off grandma!"