How did I get accepted into MIT?

I'm currently attending MIT, but I wnat to know if anyone else with similar credentials such as my own got in. I had a 3.4 GPA in high school, I was in many clubs (Captain in one), I did lots of community service, I got a 2140 SAT, I took 4 AP cles, I was a 1st generation college student (not a minority), good essays and interview, and overall well-rounded student with lots of pions and hobbies with a set life goal and pretty good idea of a what I wanted to major in. Is this normal for MIT to accept people like me, was I too low or with bad credentials, and was there anyone else like me who got in to a similar school? I do know that there were kids with better stats than me and still got rejected, any insight?