Mount Xiao Zhe had already been looted by bandits or other black market powerhouses amidst the chaos. Most of the rare materials, such as Cloud-dispelling Dust, Mujue, and Blue Flame Jade, in the same price range or even more valuable than Jade Cutting Steel, had been plundered, leaving nothing behind.
However, according to the Sword Spirit, these materials were all ordinary first-tier, or even non-tier materials, considered too bulky for one's bag. Theoretically, Jade Cutting Steel, as a second or even third tier material, should not be in the same price range as these.
On the contrary, Bright Stone was cheap in the Tianyuan Realm, but in Embracing the Void, at least during the era of the Sword Spirit, it was quite expensive and used as a common material in all Taoist Foundations involving the sun.
This was simply a case of different worlds leading to different prices.