I remember reading a post a while ago that stated that an INTj intuitive subtype would lean more towards delta because they value Ne, while a thinking subtype would lean towards beta. However, this is not correct; it is reversed. an intuitive subtype INTj (or ENTp) would lean towards beta values, because it is +Ne we are speaking of, which is what beta values (-Ni/+Ne). delta's value -Ne/+Ni. A thinking subtype INTj or ENTp would lean towards delta because the -Ti/+Te would correspond to the +Te/-Ti.
this is not superfluous; orientations are real.