[to3m]

This particular man presumably understands class as the English do - that in many cases, it's as much (or more) to do with your upbringing and background as it is to do with your current social status.

Perhaps "blue collar" isn't quite the term for this, though. I can't imagine there are many blue collar workers in a hedge fund. Maybe the cleaners...

[ticks]

I guess he's trying to say that he feels like he shouldn't be there, a pretender to the throne. Happens a lot when you are working class and join a department/division that attracts people from more affluent families.

[Duff]

I'd interpret this as someone with high income/low net worth.

Think someone from a random middle class background that got good grades an above average public college. Basically, if he fucks up, he's bankrupt.

The WASPy types with Harvard MBA's benefit from their social safety net.