It's actually only slightly high for a TV panelist on a major ratings winning programme. Have a gander around and see what other wages you can find, Graham Norton, Jonathan Ross, Paxman and Dale Winton have all done very well out of the BBC. The fact that everyone here talks about Hansen would seem to indicate that he's causing talking points every week.
Lineker is paid more by the way, and I reckon he does a far worse job. Grinning, and coming out with puns and bon mots does not make for a great football presenter.