I do not think it is that simple, especially in a large corporation.
大膽, 直接,坦率, 簡單, --- Not ture. Does not mater he/she is an American or European.
有合理的人和人的距離 ------- Most time is true.
如果他/她有明顯的違反政策規定甚至法律的行為語言, 你可以有很多方式正式COMPLAIN.---- Most corporate games were played legally.