Let's face it, we all know our socioeconomic staus. Gents want to be with their intellectual equal. Education, culture, manners, and how you carry yourself. Class can not be faked. You can dress up a ghetto lady ( we see them all the time in brand name stuff) but once she opens her mouth the gig us up. It does not hurt to be well read and know art history. A man wants to communicate with you in all forms not just sexually if he is looking for an HDH. They want to know you can walk into their office and not look like a hooker and not like the help. having stamps on your passport helps. I think they want to know you are well traveled and can relate to THEIR lifestyle.
You don't take your degree but when they talk Ebitda and you have a lost look they know you are not educated. I don't think they want to have to talk down to you.
I'll give you an example. Kimora Lee Simmons looks expensive yet she could not pass as an HDH. Not in a million years!
IMHO it is better to under sell and over deliver. If you have to mention class chances are you are not in the same class as your companion.