When Leonel refined his Incomplete Worlds, he didn't change their Laws; he understood them.
Well, at least he hadn't changed their Laws away from what came naturally to them. It could technically be said that what he had done in the Sea God World could count as changing the Laws, but in reality, he was just helping the world reach its fullest potential, which was different from fundamentally changing its laws.
The Minerva, though, once again took it even a step further than he did.
They stripped down the laws of the world and reconstructed their own.
Their goals could be summarized in a few lines.
First, they wanted to create a World Spirit whose intelligence could be used for their own purposes. No matter how powerful the Dream Force of a humanoid, it would never be able to match up to the raw computational ability of a World Spirit.