Back then, when the Space God King was able to reach that level, it was naturally not just because of his cultivation level.
Firstly, if it weren't for the fact that his influence was significant and he had many deities under his command, it's estimated that he wouldn't have been able to use a war of attrition to wear down the power of the Undead God King. Secondly, if the influence of that Space God King hadn't reached a certain extent, it's estimated that while plotting against the Undead God King, Zhou Tian wouldn't have been the only True God to intrude into their battle situation at that time.
So, although influence is intangible, as long as the influence is significant, those Divine Kings can often use their influence to gain an advantage in ordinary battles.
Understanding what influence represents, that Space God King naturally seizes any opportunity to continually expand his influence.
