Time is insignificant to a Taoist Monarch, but the current situation waits for no one. It won't grant the Jade Emperor much time. If this opportunity is missed and not seized, once the situation becomes settled, even nurturing new strong Taoist Monarchs will be meaningless.
For most Taoist Monarchs, even veteran Taoist Monarchs, standing at the peak comes not only from their personal strength but also because they have grasped the pulse of the times and caught the trend of the era.
Not every strong being is like Pei Xuanjing, who can lead the era early on. Moreover, as more powerful beings emerge, even Pei Xuanjing needs to continuously strategize and attempt to guide the trend with the current, rather than single-handedly changing the era's structure.