The effect of multi-generational wealth cannot be overstated really. I live in the UK and earn a very good salary (£60k), but I'm far from being "rich". I do feel rich, which is great, but I can walk ten minutes down the road and see multi-million pound houses that, barring some extremely fortuitous event, someone like me will never, ever be able to own.
It doesn't get my down, though. Those people with those houses rarely know what they have. It doesn't make them any happier. I'm happy knowing that everything I have has been earnt by me. I'm not sure I would be so happy if I didn't earn a very good salary, though.