Your rationality is just fine. You're just ugly.

As a matter of fact, I am. I've done enough research on facial structure and body type to recognize subtleties that most people will miss consciously. Although I do have nice skin. But that comes from keeping hydrated and away from major sun damage, which may have something to do with rationality.

And, here's the interesting part, I have found major benefits by being rational, in exactly the way I'm describing.

On the other hand, if you want to treat other people as solved systems, and stop worrying about them, I suspect you are out of luck.