I don't think you understand the concept of bidding. Just because you bid $100 a click, doesn't mean you get that unless there are other competitors bidding $99.99 for a click. If you are the only one in the marketplace, you'd be lucky to get 10 cents a click on this hypothetical site of yours. The algorithm is smart - acknowledge it and deal with it.
Okay kappa, so we will throw in another to the mix. Another friend will act as the "competitor" and bid $99.99 (with his vouchers) for placement on the site. Would this work? The only way Google could completely eliminate this would be to not allow vouchers to be used on the content network.
Do you not think google would find it a little bit suspicious that 3 clicks sent $300 into one persons adsense account? They aren't stupid and if you try to play the system you are going to get burnt. Hell, google may even choose to make an example of you and sue your ass into the ground. It's not worth it so forget about this little scheme and move on.
I still don't see how it is breaching any current TOS that google has though. Also, Google would take a commission off of that $100 I would not get all of it.