New money - I've worked bloody hard for everything I've got and I won't apologise for enjoying it.
TMC - everybody works hard, I don't see what you have to prove.
New money - <tells anecdote about life in a failing school>
TMC - that sounds awful. Why didn't your parents move into a different catchment area or change your school?
New money - <buys nice sofa> I'm looking forward to it being delivered.
TMC - Oh, that's nice for you <thinks 'why is this such a big deal? It's just a sofa'>
New money - I've had to work and fight for everything I've got. Nobody's taking it away from me.
TMC - why would anybody take it away from you? Surely you'd just ask parents/grandparents if things were difficult?
The difference is the knowledge, the absolute confidence that the world is a nice, comfortable place for the TMC and they will always belong, whereas New Money knows very well that it isn't and they've had to get themselves into that position.