The Main God Space could play an enormous role in cultivating practitioners.
No faction or powerful being could match its efficiency or capabilities in this regard.
Whether a Reincarnator was an ordinary person who had just joined or a lofty Great Luo, they dealt directly with the Lord God and were "personally" nurtured by that Limitless being.
Whether its path of development involved bloody survival of the fittest or a relatively gentle, brighter approach, the Lord God "handled" it personally.
Even if the Lord God grew lazy and later created a string of subsidiary Lord God Light Balls—say, Lord God No. 10086—so that its true body did not deal with every Reincarnator, that was still quite the Prestige.
Don't dismiss an Incarnation or a stray thought split off by a Limitless One.
Aside from the Main God Space, what faction or Limitless One in the entire Chaos Sea could do that?
The resources of countless worlds throughout the Chaos Sea would lie before you. As long as you had the ability—or the money—you could take them.
You could also travel from world to world to gain experience, encountering other civilizations before reaching Great Luo. How great a boon was it to cross into other worlds?
Such people were commonly called protagonists.
How many Great Powers, how many Great Beings, had first risen to prominence after obtaining something that let them travel across the Heavens?
A mirror, perhaps, or a sapling, or a pearl...
And then their legendary lives of dominating the Heavens had begun.
Their own brilliance as exceptional individuals was undeniable, but their later experiences across the Heavens deserved no less credit.
In that sense, the Reincarnators of the Main God Space were a group of "protagonists."
They might not have a protagonist's destiny, but they would certainly have