Exactly. I think shooting a tall building from street level and/or from too close means parallel sides no longer apply. The question then remains, what constitutes a tall enough building before one no longer needs to concern oneself about keeping the lines parallel? In my mind, it's more an aesthetic decision rather than a technical one.
You (and anyone) are certainly free to establish yourself in a career as a professional architectural photographer eschewing customary professional standards because they don’t seem aesthetically pleasing to you. 
I mean that sincerely. For most of my career in architecture architectural photography almost never had people in it (which is odd because architectural renderings typically include people), but conventions appear to be changing as I’m seeing more and more people in arch photos. My old boss demanded them in photos (which can be really hard to do during a photo shoot). So, conventions/norms can and do change).














