Well, only the question of "are the two scenarios exactly the same" is put to rest. The creative possibilities of using different curve shapes for different renderings within the same overall contrast are still wide open.
Given that the eye separates tonalities better in print highlights and that it is often desirable (from a purely graphic/compositional perspective) to suppress detail in the deepest shadows (I often end up burning shadows down...), expanding the mid-tones at the expense of highlight and shadow by purposely targeting to print on a grade 3 (or higher) paper often results in a more gratifying print.
I'm not very scientific about this when working, however. I normally just decide if I want to increase mid-tone/local contrast or not at the time of shooting and indicate the development accordingly. E.g. I'll give a "normal" scene N-1 development if I want more mid-tone separation or to emphasize texture more. However, if the higher values are the more important, I'll develop normally. That's about as precisely as I can visualize
Doremus