Because they're part of it. Furthermore there are no rules enforcing them it's illegal. Even the Etherium Realm attacked weaker dimensions turning them into virtual worlds.

It's a dimensional space with irregular massive space inside. The light, darkness, time, etc was managed by the dimension's law so it can function regularly.

Yes, but not officially.

Maximus couldn't just sell the condense system points to the world's will, the only choice was to let the world naturally absorb it which is less profitable than directly exchanging it in Myriad World Mall.

It's seven years, but epochs passed in his consciousness.