First things first, there was his plan for the transmission of the thing. Dalvin had no intention of letting everyone and anyone share Tianzi or any future world with him. Gaia had not forced him to help humanity and had left everything up to him, so Dalvin wasn't going to be a bleeding heart and help the world or save the world.
But he would have to expand his base because of the system itself. Even though Gaia was supplying him energy, she had not changed its core makeup and layout, which was that of the Dao of Invasion from Shi Feng of the Immortal King grade.
As for the Dao of Invasion, its strengths and limitations were without explaining. This system was not meant to be used by one person to empower themselves, but to be used by one person to use everyone like pawns to fulfill their goals and empower themselves at the same time.
