I meant a social asset in a professional office; you just have to pass the "lunch test." Are you someone that associates, partners, and clients can enjoy going to lunch with? (That's why callbacks always have a meal.) It's not about winning Miss Popular; you just have to be pleasant to talk to, interesting, and your spouses need to get along at cocktails.
The other social skills I included are "the ability to quickly read people, identify their needs, cultivate relationships and sell."
It really only matters what your clients, bosses, judges, and (on very rare occasions) a jury think about you.