The merchants understood what Zhao Hai meant. They also knew that Zhao Hai was telling the truth. After the war between the orcs and humans, the merchants controlled by the Church of Light would definitely come to the grasslands to do business. They had also seen that the Church of Light's merchants were very powerful because they had the support of the church of Light.
Just as Zhao Hai had said, the people from the Church of Light could stop the merchants from selling food to the orcs this time. Next time, they could also lower the price. By then, he would suffer even greater losses.