[charlesdm]

Making profits unethically doesn't necessarily mean it's fraud. The two things are very different.

I can knowingly sell you a crappy car, and if you sign an agreement that you bought and accepted the good in its current state, that's that. Yes, I acted unethically, but I didn't defraud you.

[Sabinus]

The rich have the ability to make their unethical actions legal, whereas the poor have no such sway in politics.

[cycrutchfield]

It has nothing to do with politics, but it may have something to do with the cost of legal representation.