That sounds like pretense. Are they paid the same? The question is meant as sarcasm.
I find this thread so ridiculous. I've traveled all over and lived all over. I rarely find that peoples' perceived cultural distinctions are in line with reality. I think instead it's often just lip service to their own sense of identity.
Above, someone mentioned that Americans have an idea that there is a master and servant relation with your boss. As an American I find that shocking. I have never felt that way about my bosses nor have I ever treated an employee that way. As a lowly sys admin many years ago, I went to bars and lunches with CEOs of companies of hundreds of millions of dollars. I'm still friends with them. I'm not worth millions but we still go out for drinks and enjoy dinners together. I'm not just talking about one person. This is not rare.
We respond to people the way we think they want us to respond. Your own stereotypes about another culture will be self fulfilling because of that.
Additionally any assumption you can make, about American culture specifically, would miss the fact of American culture. We have none because we have all cultures. My kid probably hears more Hindi than English in the classroom.
To make any statement about culture in America you'd need to specify. Americans from where have a master/slave mentality? Americans from Australia? India? Pakistan? China? Japan?
Which of those are the "Americans" you're referring to? Surely you wouldn't assume each of those groups have just one culture.