There's nothing wrong with it. It's just when you're struggling to get into a T2 school, it can make you feel even worse when you're surrounded by people who even have a chance at Yale. It's not the Yale kid's fault. It's just a self-esteem/self-doubt thing.
I was rejected from Yale, and, while I'm sad about it, I still appreciate the fact that Yale admits on this board remind me that it's not the end of the world.
Your situation is a tough one, yet I wonder whether the same people would appreciate being around simply T2 grads. I like the competitive kids.
There are competitive kids at 2nd and 3rd tier schools... I would say they are even more competitive because they have to graduate at the top of their classes if they want to work in big law, etc.
155 is a good score for a lot of schools. If that's what you got on your 3rd time, just think of it as another challenge. Apply to a lot of 2nd and 3rd tier schools and go to the best one you get into. Then, work as hard as you can... and if you are able to be the top of your class after first year, you can easily transfer to a top tier school. And even if that doesn't happen, getting a law degree from a 2nd and 3rd tier school is still great! It's something most people in the country can't even think about doing! So, good luck and don't let all these people get you down.