I agree with you when that student is white, from an upper middle class family that has the financial resources to allow their child to participate in activities like sailing and possibly test prep. (Yes, I went through your post history and looked at your chance thread,).
However, when a student is a URM or first generation college applicant, that is not necessarily the case, as those students often lack the financial resources for ACT/SAT test prep. That’s especially true now as Yale is actively recruiting more first generation students; http://news.yale.edu/2016/12/13/yale-helps-found-alliance-expand-access-college-50000-talented-students-lower-income-fami
Full Disclosure: My son is white and his family had the resources to send him for ACT test prep – and colleges knew that by looking at his zip code and the occupations and education of his mom and dad. And they will do the same to the OP’s application, as well as your application – that’s why it’s called holistic admissions.