Hiya!
Couldn't find one that was what I do. The whole "expect players to..." is the problem. I don't "expect" them to...I don't care what their PC's do...because I'm the "world"; the world doesn't conform to a PC's particular picadillo's just because it would "hurt or be detrimental to their feelings/sense of morality/sense of right-wrong/sense of justice/etc".
The world is the world. If, as someone mentioned above, it was an Edo era Japanese campaign, then there is a very strict expectation for members in the society. That won't change. People defer to Samurai, period. They do nothing against them without knowing the consequences (often, death).
HOWEVER... the Players are free to play their PC's however they want. If they want to play a group of "treasonous barbarians", intent on dismantling the status-quo... go for it! But I'm not going to just have people "accept it" and not immediately inform the Daimyo's men.
The base ground expectations are in the title: "Historical Settings". If I was to join a "Historical Edo Japan Campaign" using the HERO/GURPS/Masterbook/whatever 'generic' system, I'd expect there wouldn't be any female samurai, male Gisha, or noble persons 'helping the farmers in the fields'. Because that goes against the 'historical' aspect of it all. Ergo, if a Player got "upset/offended" by their PC being treated as they should (based on religion, house, caste, sex, profession, etc), I'd ask why the heck they wanted to play in a historical based game in the first place.
But, as I said, if the Players want to roleplay a PC that goes distinctly "against the grain" for the challenge of it all... heck yes!

I'm just not going to "change things" so it's easy for them.
^_^
Paul L. Ming