Well, you also legitimately can't really do the latter on a practical level anyways. I mean, unless you're sitting people down and making them take psychometric tests, you're probably for the most part judging people's types based on your interaction with them or with other people as well as behaviors, mannerisms, maybe appearance, etc., and, guess what, that's how you would select people to be if you weren't thinking in terms of socionics as well.