I don't believe you accurately see where this oligarchy starts and ends. How long it's been in place, or the results of dispelling it.
I totally understand what you are saying, but what is the alternative? Correct me if I'm mistaking your point, but I read that you are saying that learning about this and attempting to change things won't matter because the oligarchy is too entrenched the same people always end up running things in the end.
If that's the case, then why should we spend time even talking about these things? Are our masters so powerful that you really are helpless or have they convinced you that you are helpless and that you can't do anything about this huge problem?
Check out this video.
http://www.wimp.com/thegovernment/
What if the Founding Fathers had felt the way that you seem to feel?