Reading the quote that mentions plebs - one of the boys at uni - we were 18 so technically adults but not really grown ups - had a Morgan. He loved to drive it around with the top down, shouting 'fuck the plebs'. His friends all thought it was hilariously funny. During the miners strike, in a very northern town which had the guts ripped out of it. It wasnt so much the lack of real world experience that was shocking, as the disdain for anyone not as privileged. And since it was not Oxford or Cambridge, we got a lot of the stupid ones - the ones too stupid to make it there even with extensive cramming but who could be coached into getting through an interview.
If your life is always sheltered and pampered, in order to have any idea of how lucky you are, you have to either have a very sensitive disposition (Charles and Edward) or someone who can exert a strong influence on you, like Diana was on her boys.