I'm not opposed to an exception for acceptable ads; I think it's a good idea. My only problem is that it seems to be a serious conflict of interest to accept money from ad providers for this.
As long as the accepted ads are really non-intrusive, there's no conflict. There would be a conflict if you could pay Adblock Plus to accept browser-hijacking popups.
Reviewing ads takes time. Time is money. It's perfectly reasonable to charge for the review process.