First, let's look at Florida. With the new laws that allow a running candidate as much fiscal backing as want, Rick Scott was able to buy his way into office with the help of his friends in the drug industry. Then, he passed a bill that required everyone applying for welfare to take a drug test, which would "save wasteful welfare spending and create jobs". A year of testing found that 2% of people on welfare were also drug addicts, and had their welfare striped. The estimated savings were $60,000. The drug companies that funded Scott's campaign election were also the ones who ran the test. The state of Florida paid the $178 million dollars to run those tests. So the corporations made money off the state in what they knew would be a futile act (it had been reported that savings could reach up to $1 mil). That's the kind of thing Occupy is fighting.
Aside from that, look at the events that caused the entire economy to collapse. Citigroup is one of the key offenders: they compiled all of their mortgages that they knew would default, and sold them off at high interest rates telling investors that these packages were likely to make lots of money (as indeed they had during the housing bubble), and they made a huge financial windfall, though this action led to higher interest rates for the homeowners, who then ended up defaulting, and causing the investor to have to pull out. This was the bursting of the housing bubble, and a few key investment and insurance groups made billions of dollars on the movement of these toxic assets. They were essentially hoping that they economy would collapse so they could profit off of it.
There are tons of other examples, like our bought congress, SOPA, the Keystone XL pipeline, the changing policy of collegiate loans to make students pay for them while receiving them, corporations who move their profits and assets to overseas banks to pay less taxes to countries other than America (yet still get tax breaks), corporate personhood (which means a company has as much freedom as a person does, allowing them to sue people offend them, such as how the Monsanto will sue anyone who tries to film their company), the fact that many our government is having people arrested for trying to film their fiscal meeting that are "open to the public", and the list goes on and on. It's hard to have a single focus when the problem is so vast.
/grammarpolice