Hi knu, welcome to the club!!
You have got a great score so congratulations!!
I do think that a strong Q score does matter a lot while applying to the Top 15 schools but at the same time I have seen many prospective students here with high verbal & low quant but they managed to be part of Yale, Ross & Kellog etc.
Essays will be the deciding factor, if you write some excellent stuff, I dont think your low quant score will hurt you.
The difference between 46 & 50 Verbal score is a matter of 2 or 3 wrong answers. V50 is a great great score, so be happy with it & put all your efforts on Essays.
Best of luck & keep us posted.