There are tons of guys that can hit it far but most can't find it after they DO hit it! Their length is counterproductive because they are pitching from the woods if , in fact, they do find their ball.
Length is great but there has to be a balance with control. 260 straight down the middle beats 300+ in the woods every day of the week.
Personally, I've learned to ignore two things until I actually play with someone:
1. How far they hit their drives
2. How low they score
Both are almost always overstated and being a golfer myself I know that we all have short memories