You are not selfish. I suspect the ladies at the dinner may be a bit envious because you are pursuing your dreams and for whatever reason chose not to follow theirs, whether by happenstance or by husband. It's a shame that they weren't more supportive of you.
Indeed there is a double standard out there but rules were made to be broken. I bet their husbands got more than an earful that night after they found out how supportive MightyMike is for you.
Good luck on getting into the law school of your choice!!!