Is it just me, or does ufc and pride boast up their fighter's heights?

I think the biggest example of this was the Randy Couture fight against Brock Lesnar. Supposedly, Randy is 6 foot 2, and Lesnar 6 foot 3. But if you saw the fight, you would of noticed at the stare off before the bell. It looks like Randy barely reached Brocks nose. It must of been a 3-4 inch difference. Making Randy seem more like 5 11. And its not a big deal, i just wonder, why would they manipulate the heights?? I notice this with almost every fighter. GSP looks 5 8, BJ Penn looks 5 7. Hughes 5 7 Fedor 5 11. etc...