Priviledge is definitely real. If you go to a prep school you'll see it. There are some people who immediately have access to the best schools and colleges, just because they are legacies. Others have to work hard and may still not get in.
A priviledged class does exist in the United States, as I'm sure it does in most countries. I disagree that it is something we always have to earn. Some of the privilege we enjoy in the United States is simply because we live in the United States. Some parents are raising their children to feel privileged, and this carries over into classrooms because students feel they are entitled and don't really have to earn anything.
I would agree that a privileged class does exist in the United States. In all communities there are certain families who are able to get away with things that others are not allowed to.
It certainly seems to me that the idea of privilege is real. By privilege I assume you mean some kind of special advantage over others. We commonly equate such things as a famous name, money, or some other element which brings status or position with "privilege." If that's what you mean, it's hard to deny that there are people who are, indeed, privileged. What privilege can do, I think, is give one the freedom to work or create or give or do whatever one chooses with relative security. In other words, privilege provides a kind of safety net which eliminates many of the pitfalls and dangers of these kinds of efforts. On the other hand, privilege can make one so soft or lazy or dependent that nothing is ever achieved--or, worse, negative things are produced (such as adictions or other destructive lifestyle choices). One thing is certain, however--one does NOT need the stamp of privilege to be successful. The list of people who have accomplished great things in every conceivable area of life without the benefit of privilege would be virtually unending. Sometimes, in fact, not having everything provided is a greater impetus and incentive than having everything given to one from the beginning.
Assuming that you are asking if privileged classes, or privileged persons exist the answer is yes. A privilege is something we earn in exchange for a service, a good, or any other form of negotiation that occurs. A life of privilege is one often referred to as consistently being recognized for earning special treatment and /or receiving accommodations.
Being privileged is meaningful to those who wish to get to that point in life in which they are financially resourceful to fulfill many goals, hence earning more privileges. As a result, you get keys to freedoms and possibilities that other people could not aspire to achieve.