Certainly he could: he was just the sort of famous person whose presence would give publicity to an appeal.

ECONOMIST: The great Fenice mystery

But one of the world's most prominent medical journals wouldn't give this much publicity to a tiny study by a tiny company if it were not positive.

FORBES: Magazine Article

Right-of-publicity laws, which give people the right to control the use of their identity.

FORBES: Publicity Shy

Instead, advisory boards give businesses access to strategic minds as well as some publicity.

FORBES: How Creating an Advisory Board Can Help You and Your Business

We don't want to give them (the EDL) the opportunity for the publicity that they are seeking.

BBC: EDL mosque protest in Reading is branded 'hateful'

During the 2007 election campaign, he refused to take part in televised debates with other candidates, saying they would give his rivals additional publicity.

BBC: Profile: Dmitry Medvedev