I know this is getting off topic but the discussion here is interesting. Getting away from referring to a particular person, how often do you think this happens - where tertiary is emphasized over the auxiliary, or auxiliary is emphasized over dominant (if that's possible)? What are its effects?
I think it happens a lot. If another function is emphasized above the dominant, you become a different type.
The effect of leading with two introverted functions typically results in overdependence upon internal values and becoming totally out of touch with the external world. This happens when an I type has a poor secondary E function. (See Victor, Fi+Ni.)
The effect of leading with two extroverted functions typically results in overdependence upon external validation and no sense of internal self and what's subjectively important. This happens when an E type has a poor secondary I function. (See Little Linguist, Te+Ne ESTJ or Ne+Te ENFP, depending on whose interpretation you believe.) Note that when the auxiliary function is dropped, the dominant+tertiary mirror the dominant+tertiary from the type that shares only your first letter, except inverted.
For another example, ENTPs with poor auxiliary Ti come off as Ne+Fe, which most often looks like Narcissistic Personality Disorder. With no sense of self by which to orient internally, they become totally dependent upon external validation from others and rather resemble childish ESFJs. (The ESFJ with poor auxiliary Si would look like Fe+Ne, and have a similar problem.)
When I was younger, I don't think I perceived the value of introverted intuition at all. The outer world taught me that thinking and sensing were more important or at least socially acceptable, and I think it drove me into acting in a way that did not align with my type (more ISTJish). It wasn't until I took the MBTI assessment and begun to understand myself a bit more that my career, relationships with others, etc. began to take off.
Many people are so immersed in the influence of the dominant function that they don't even recognize how heavily it affects their perspectives. I think of the dominant as a pair of contact lenses that you don't know you're wearing, and the auxiliary as your favorite pair of glasses to consciously look through. As you get older you'll learn to look through the tertiary glasses sometimes too, and occasionally even the inferior (but this pair is dusty and hard to see through, and rarely gets picked up anyway.)
Whenever I explain Ni to INTJs, for instance, their first reaction is invariably Te-oriented disbelief. They don't understand that the abilities and perspectives that result from Ni are anything special or out of the ordinary, because the dominant function's values and ideas are so incredibly obvious to them. Often the response from
any type upon hearing a description of his dominant function is: "Well of
course I see things that way; that's just common sense. Doesn't everyone?"
The dominant is just seen as the default perspective--how could anyone
not see things that way? We are conscious of the coloration placed on our perspective when we use the auxiliary and tertiary functions, but the dominant is so ingrained into our perspectives that it's hard to even realize it's coloring what we see.
I suspect that, if you are indeed an INTJ, Ni has always heavily influenced your perspectives, but you'd never realized what it was or consciously noticed its effects before studying typology.