yeah, I see your point, I hope you see mine too though.
In my opinion if the class difference were lowered people would still have to work very hard to be successful, but they will have more resources and a better opportunity to do so if they had more money.  And not only them having more money, it's more them having a closer amount of money to the high class citizens.
I personally think I have a very good life with many opportunities, I go to a good school, I live in a good neighborhood, and do what I love.  I still have a summer job and believe in hard work.  But think about it.  If two people work equally hard, but one starts out with a head start (more money), who is going to be more successful? (Not saying that this is you or anyone, it's a generalization)
And yes, people who have less tend to work harder than people who have more, because of necessity, but that is not always the case.