That's true. We all do it in different ways to counter our own psychological quirks. To say that our social behavior is a reflection of our true tendencies would be a lie. A psychopath is more honest when he is acting one than when he is pretending to be like the rest of us. People are different from each other. Some more so than others. It's evolution at work. Acknowledge it and get over it.

I don't know much about psychopathy, but is it generally accurate to say that psychopaths don't "understand" the ethical rules of society or the motivation for having said rules? I thought it was more that they didn't feel any sense of personal moral obligation to follow these rules or any sense of guilt when they don't follow them (while they still might completely understand the rules and their philosophical justifications, and may even be completely in favor of these rules existing and everyone else following them).

(Like I said though, I know very little about the disorder and am mostly conjecturing based on superficial familiarity)

Right, this just sounds like a more extreme version of introverts who have learned to "act" extrovert in huge crowds. E.g. Nixon

We lose so much potential in these people to change social norm from conventions nobody else is willing to question. Especially when you drug them from a young age into a continuous waking stupor.

A lot of aged traditions that will not mesh with an instantaneously connected, constantly communicating and sharing global society will not work in the next several decades, and some of the textbook "unbalanced" will hopefully be the ones to push change to match changing realities.