This rule is discussed elaborately in Robert Greene's book 48 Laws of power.
As the person grows in power, wealth and influence, he climbs higher and higher.
Then he becomes No.2. Next to the King.
The King perceives him as rival and a competitor to who can replace him.
Then all the advisors of King spy on No.2.
This all often results in sudden and unexpected fall of No.2.
This law is seen in operation in almost all political set ups.
Haresh Raichura
1108