My point was that his main 'life's work' eventually concluded with him dying for our sins. And maybe I'm wrong (because I'm no expert), but I think a major reason he is so universally loved and worshipped is because of this sacrafice.
It makes sense to celebrate his 'life' rather than why he died for us though..... so I understand the 'tenet'.
EDIT: Does anyone else see this Ad at the bottom? LOL good timing.