Being the Clan Leader of the Family has its perks. As long as it's not some particularly difficult item to collect, a single command can send a multitude of clan members running errands for you.
Previously, even when Zhou Chun was a Golden Core Stage Cultivator, to gather the Spiritual Medicine needed for refining the Ancient Dust Pill, he had to scour various marketplaces individually.
Now, with just a command, the Zhou Family's Golden Elixir Elders and Purple Mansion Cultivators would swiftly take action to help him collect materials from different countries.
Moreover, when some forces learned that they were gathering materials for him as a Nascent Soul Stage Cultivator, even if they wouldn't lower their prices, they mostly wouldn't dare raise them either, nor commit acts of murder and theft afterwards.
