I am high class

Someone I know told me once "I am high class"

This got me to wonder - How do you become High class?

Do you become high class by
1. You are more educated than the other person.
But then Bill Gates did not complete college. How can he be excluded from the category.

2. You have more money that other person
But then money moves from one person to other. It's in the nature of money to keep moving. Someone may be rich one day and become poor some other day. So does that person move from high class to low class due to this?

3. You have more values than other person
Say you are honest and loyal. That is a quality that takes effort to maintain. May be that is what high class can be. :)