Actually, it's more like finding something that's been really obviously mis-priced (e.g. a 50" TV at £4.99 which should obviously be £499) and then buying the shop's whole stock.
Perfectly legal, but morally right?
What about something like this?
It's a somewhat complicated way to legally pay as little as possible. Is it morally abhorrent like Carr's actions?

and especially not by the government. I believe they would have preferred the media to not of run the story about Carr, as it has drawn attention to why these loopholes were in place to start with. they did their best to cover it up, but Cameron just seemed dig himself into a big hole.