Champion Versus Representative

And this potential wasn't just mere potential, for the strength of Krune and Mon-Tu-Casha had already reached a terrifying level, enough to challenge Turmul, someone that had reached the Older Generation. 

It had to be noted that Turmul wasn't just an Older Generation Primordial Beast now but an Older Generation Primordial Beast wielding the powers of all nine Primordial Beast races. And that already put him on the level of a Chief.

The only thing Krune and Mon-Tu-Casha lacked was the authority possessed by the Chiefs. And that too would change once they created their Universe Realm Ability. That would be the driving factor as more and more Gods would grow strong enough to challenge the Primordial Beasts. 

If not for the existence of the Universe Realm, even if they trained for an eternity, Krune and Mon-Tu-Casha would never be able to attain such a level of strength.