In fact, when deciding which God Pantheon stairway to guide Theo onto, Karl hesitated as well.
People whose character traits match the affinity of a path find it easier to reach the top when stepping onto a God Pantheon stairway, yet Theo's character traits aligned with both the "Path of World Order" and the "Path of Authority."
The focus of the "Path of World Order" isn't on requiring Extraordinary Exponents to comply with laws and all sorts of rules, but rather on maintaining principles within one's heart.
The focus of the "Path of Authority," on the other hand, is a strong identification with existing hierarchies and external rules.
As for the "Path of Conquest," it was actually a path Theo was completely unsuited for because he lacked strong ambition.
Only those with intense ambition, who almost wish to devour everything, can really go further and further on the "Path of Conquest."