I read that book. It helped us identify an extra curricular activity D hadn't heard of that she wanted to try, but that is about it. It has a funny little reference to Davidson's THINK camp (actually a footnote), saying essentially that it is so selective it is not worth the readers planning on attending. D thought the footnote was very funny, since she has been to THINK.

Ren, anyone is free to hire a consultant or a company like that. It is not just people from other cultures. And among those students from other cultures, not all are hiring consultants. My D has really enjoyed some friends she met at THINK from other countries (her exact quote: "I think someday I will marry someone from India because the friends I made from there are so smart").