An interesting topic, that, IMHO, is being dragged into undebatable territory, aka waffle. Who could tell whether there is any discomfort in holding conflicting irrational beliefs?
Following the example in the OP, I'd suggest we stick to the cognitive dissonance felt when a deeply held belief is contradicted by facts or logic. The holder of the belief cannot refute the information and so dismisses it, but feels the pain.
From the OP:
Likewise I felt equal discomfort in our seemingly vain efforts in India where our Witness to citizen ratio was in the millions. My mother and father would hate when I brought this up
The discomfort felt by the poster and parents when statistics published by the wt itself contradicted belief in the effectiveness of the preaching work is a classic CD symptom.
Of course, CD it not confined to the wt or to any religion. I'm sure nobody completely escapes it.
The intensity of the dismissal of undesirable information is an indicator of CD discomfort. When jws attack "apostates", and quickly label people as "opposers" "deniers" etc, the pain is obvious.