I am pretty sure that taller people get more cred. I am 6'1" and have noted many moments where I got better treatment over someone else, sometimes even when that someone is is my boss. But, he's like 5'6".
It does also help that I am ridiculously good looking, so the combination of the two makes me virtually unstoppable. I am pretty confident that I'll be on the covers of GQ, Entrepreneur and Fortune simultaneously within the next 5 years.
This, of course, assuming that I don't die in a freak gasoline fight accident.