When you understand where people stand and how they think, you may be able to form more productive relationships. It’s not necessarily about being liked and having friends; it’s about having cordial relationships based on respect. Those are the kind of relationships that help you get things done.
There are people who claim to like people they don’t trust, but I almost never believe them. For me, the word “like” implies a relaxed relationship, and I can’t relax around people I don’t trust. I suspect that liking someone you don’t trust means that you believe you’re far enough down their enemies list to escape any negative behavior.