"Knowing your place," to me, is somewhat of a medieval concept. You were either a king, a nobleman, a yeoman, an artisan, or a serf. You weren't able to rise up in the hierarchal structure; you certainly could downgrade yourself.
I don't "know my place." I'm not above or below anybody.
I know that I'm a person who seeks to make a living, be good to his friends, and not hurt anybody. T
That's my "place," really.