facts:
WAIS scores have a normal distribution, with conventional mean 100 and standard error in the range of 12-15 depending on the version (WAIS I, WAIS-R, etc).
These scores have been validated by a good chunk of academic research and are known as being satisfactory proxies of a person's intellectual abilities.
Now, I do not have distributional facts handy, but it appears that the second percentile is at around 145. The first should be at about 160, based on a look at the graphs.
So, if I only consider the distribution of ONE of the redeeming qualities of someone whom I might just trade in for a whole lot of nothing, and maintains he's a certified 175, I have to start looking for one in about two to three thousand (calculations based on approximate estimate of the distribution of WAIS scores, gender and age). If we want to be optimistic, this means three hundred people in the whole country. But I guess this is a very lenient estimate, taking into account a very large demographic, and assuming all of them are unattached (hahahaha).
If I do think about joint distribution of this and other traits, which I cannot estimate because one doesn't really know about the distribution thereof, I feel inclined to draw the one conclusion that as a statistician one never wants to draw: one-unit sample.
np: requiem, requiem