It sends the wrong message and endorses such consumption from one of the largest cancer charities.  We should be combatting obesity to reduce cancer, but we'll never tell the fatass to lose weight aggressively largely because of corporate interests. And here's another corporate influence under the guise of charitable contributions of a pathetic £1m a year with most of that being made by the staff and public. Very little of that £1m came from the £600m approx profit each year.  You're right, on a micro level one morning for cake probably isn't too bad for reasonable person. But we as a society might wonder why articles criticise company 'cake culture', and why it's proven very few associate obesity to cancer. It muddies the water and obscures the problem further. Hypocrisy at a high level doesn't help it hinders.