This is a misguided statement. Having a 3.2-4.0 gpa and "social skills" are not mutually exclusive. Besides overlooking the innate traits and abilities of a candidate, such as personality. There are many students pulling down excellent grades that are also involved in the community around them and whom are very outgoing - in short they have "social skills."
Look up some courses in management, communication, critical theory, women's studies, and cultural studies. Yes, tolerance and all of those things you have listed can be learned in a classroom and for many students that is where they learn them and gain a better appreciation and understanding about the culture around them. 😉
This is true. The DAT does demonstrate an applicant's knowledge as compared to other applicants and is a great standardized bar with which to measure him/her.
There are many aspects to a candidate's application, not just grades or DAT scores. The personal statement, background, experience, transcripts, and LOR's all help build a picture for the adcom. Dental school is rigorous and challenging. If an applicant has a low gpa, and a 2.7 is low, then yes, the other areas of his/her application will have to convince the adcom that he/she will be able to function in dental school and eventually in the profession. Of course not all students fit the 4.0 mold. I certainly didn't. But that's not to say that the higher your grades, DAT score, experience, etc. won't make you an attractive, and hence, desirable applicant. It will. If an application is weak in one area then that person should try to bolster it in other areas so that they can get an all-important interview. If things go well in the interview then he/she probably has a good chance of getting an acceptance, even though he/she might not be the school's top pick. Everyone is unique and ultimately it's up to the adcom and whatever way or technique they use to gauge an applicant and his/her likelyhood for success in dental school.