Jiang He might have transmigrated to a world of Qi and martial arts, but the System that he got only provided him with... seeds. 
"Hold on, System. Aren't these just... peas? Not only are they inedible, but I'm supposed to throw them far, far away?" 

Everybody is Kung Fu Fighting, While I Started a Farm

"Jiang He, I'm going back to Earth," Wang Hou said after they finished their food. "I've already reached the fourteenth tier of martial arts and continuing to fight here isn't that useful for me. Moreover, I wonder how martial arts have progressed after we've left for years."

Musing to himself for a few seconds, Wang Hou then added, "I also vaguely sense it progressing back on Earth and it seemed to strengthen my Fortune Qi and smoothen my cultivation. As such, once I return, I would spread martial arts to other countries."

While he was the one who had founded the new system for martial arts, Wang Hou was its pioneer in all seriousness.

He had molded a river for Martial Dao to shatter the shackles of every martial artist, granting them a new path. Moreover, when the Twelve Bronze Men that sealed the qi within Earth's Dragon Pulse all fused into Wang Hou's body, there must have been some providence that took form then.

Patriarch Jiang!