For 50 years the Two Rivers Empire had grown immensely fast. The potential was always there but survival and damaged cultivation always stood in the way. Also, the complete lack of consistent resources.
Lind's ring was loaded with herbs and thus the seeds of grade 1 to grade 6. He started many gardens and over the first couple decades, alchemists and even a few elixir masters finally appeared.
They were all, however, from the children born in the empire. In other words, the brand did something he could not repair or worse, simply prevented the gift in a way he did not yet grasp.
Considering how invasive it was and far above him, it was already a miracle he could remove it as he did. He had finally broken through to high Heaven grade 6 a decade ago and it made the process a LOT easier.
