This story is stupid because if he wished to obtain all the heavenly treasure then the world’s balance would be destroy. Not by him though because the moment he enters that world with all the treasure gathered, the treasures would release a powerful aura, informing every known cultivators and factions to come and kill him for it, and since he just arrive there with no cultivation, he’s fûcked.
Then whoever survive and take the heavenly treasures as a victory prize will gain immense power and rule the land until an even more powerful people or the people that he trusts plot against him and kill him for the treasures. And the cycle continues until the end of time