However, since ambient temperature is a major contributor to VD, the NEC included the temperature Correction Factors to adjust the conductor size accordingly
Here you are mistaken, the temperature correction factors are not in the NEC for voltage drop reasons.
The correction factors modify the rated ampacity of a conductor in order to keep the conductors insulation operating within it's design when the ambient temp is above or below 78–86 F.
Bob
Bob Badger Construction & Maintenance Electrician Massachusetts