Pressure
Old Thunder's warning rang some bells in the minds of the three association heads. Particularly after he mentioned the incident of him beating up Old Three.
In fact, that was not after they reached Consummate realm cultivation, rather when they are still transcendent stage cultivators.
The current family heads are all younger than the three association heads. But there is not a difference of a generation. If one has to put it in words, it's almost like half a generation.
But just like everyone else, these old men were caught by the family heads after they stagnated in their cultivation. But they still remembered the days when Old Thunder was still reigning supreme. Only inferior to the monstrous genius in the Beast faction.
After so many years, they really did forget the bitter days of the past and got drunk with their authority.
Now with the warning, they were forced to come back to their senses.