Wondering, how did you "project" that LSAT score?
JonnySeed--I will give you one particular example in which a t 20 school is much better than a school in the 20-50 range. The University of Texas-Austin is ranked (I'm estimating within a close range error) 16th or 17th in the nation by USNWR. Look at the other schools in the state of Texas. The next ranked school is Southern Methodist University at something in the high 40's or low 50's. After that are Houston and Baylor. These are the four ranked schools of Texas. UT is without a doubt the most prestigious one in the state, and, while argument exists about the national reputation of this school, job prospects generally run across a wider range of opportunities for its graduates. From there, reputations become more regional although statistically speaking all of these schools do place in a decent number of other states.Of course this argument only follows if you equate "better" with most prestigious" and "wider range of job opportunities."
This is just hypothetical, but let's say I got into Duke Law, which is a T14, and performed very well there. Would it be difficult for me to to find a job at a prestigious law firm in a northeast city like Boston or New York? Or would someone be better off going to a lower-ranked law school in that particular city, like Yeshiva in New York?