OK let's take a concrete example.
For OAT of 140 F and pressure altitude of 2000 FT you have N1 = 88.9%
If I understand you well, you still have space to push thrust lever above this N1, and by doing that, you would cause EGT needle to enter a red zone?
Or other words, above some limit temperature, you deliberately have to decrease the maximum T/O thrust because of the EGT limitation?