I'm guessing in INFJs that Fe is a support for Ni, in the same sense our Fi is a support for Ne. So Fe will be expressed in your decisions, but the goal is intuitive. Deep in your soul as an INFJ you want to learn, not save the world. You'll tell yourself otherwise, but you save the world to understand, or because you understand. You give to learn about human dynamics and support the understanding of self and social networks.
What I think I'm saying is that a dominant intuitive is a scientist at heart, not a feeler. They love understanding relations between things. This may be even analogous to the ENFPs discussing having Ti. Dominant intuitives are thinkers! T is an approach to decision making or concluding a solution where rational logical perspective is taken over personal or social consequences. ie. reverence to logical consistency over effect. If you perceive links between things and understand things in your internal world, that is Ni. You have probably developed some Ti if you are INFJ, but it may be less than you think. In the same way that us ENFPs aren't Ts. I'm only just learning what to do with Te and I'm 27.
I do notice your openness to and drive for logical analysis is higher than many INFJs though. So not positive you are one. Just know that being INFJ is no reason to not be a thinker. In fact the ones I know all consider themselves thinkers and philosophical. And all have good grades.
p.s. I can't completely perceive my mirror type so are having a stab at it in places by analogy. Hopefully it gets it part way there, or enough for the message to get across though. I'd write the whole thing with more tentativeness, but it would make it a mess to read, so just correct me where I'm wrong.