The difference between the rich and the poor is that the rich can move to the Virgin Islands, or Jersey or the UAE or at the very least move their money around. The poor often don't have that luxury, they are static cash flows which makes them easier to extract funds from than the rich who can be adept at hiding it. By rich, of course, I mean those with six figure salaries, the extremely rich, the kind of people that most people think of when the terms 'fat cat' get thrown around.
Eh, capitalism is an awkward thing, some places it works, others it doesn't, and it depends on how you look at it really. No way that everyone is going to be treated the same, not on this planet, not in any of our lifetimes, so you just have to live within the system you live in. Grass isn't always greener...after all, look what happened after Lenin.