I liked CK2's traits system. People are complex, traits could have any interpretation. And people changed over time, which was pretty cool. I never gave much heart to "Kind people need to only do x actions; ambitious people need to do y things" because people can act differently in different contexts and aren't caricatures a la Inside Out.
With that in mind, I like the idea of stress for going against your personality. I don't see it as necessarily "punished for acting out of character", but people have their own particular outlooks on life and certain behaviors, but we're all required to act against those in our own lives. Feeling stressed for having to do what you gotta do to put bread on the table, or to act certain ways because tradition or courtly appearances require it, or because you really just acted in ways counter to how you want to be, is cool.
Hopefully "too much stress turns you insane" isn't too quick of a process, or isn't the same rate for everyone.
With that in mind, I like the idea of stress for going against your personality. I don't see it as necessarily "punished for acting out of character", but people have their own particular outlooks on life and certain behaviors, but we're all required to act against those in our own lives. Feeling stressed for having to do what you gotta do to put bread on the table, or to act certain ways because tradition or courtly appearances require it, or because you really just acted in ways counter to how you want to be, is cool.
Hopefully "too much stress turns you insane" isn't too quick of a process, or isn't the same rate for everyone.