The name of a very fine brand of Champagne Cognac. Because I can.

The only real "protection" against rogue admins is to have multiple admins who can monitor each other and (if required by audit) sign off on each other's work. Most organizations of any significant size have more than one person at the top, so that (at the very least) if any one admin is sick or leaves in a huff, one or more of the other's can take his place and/or revoke what permissions that admin had. This can take some forethought to prepare.

It might be out of your price range, but the industry standard in your situation would be Blackbaud's Raiser's Edge solution.

Without seeing the survey I can't confirm this, but I would suspect that they are only counting Internet connections to the home or office. The number is much larger when you consider the number of people in developing and 3rd world nations who access the Internet in public venues, like cafes and libraries. But getting a good count here would be very complex.