Actually, I think it is being reported now that this wasn't a punch, but rather a strike to the face with a statuette that broke the Prime Minister's nose, in fact.
Berlusconi is the most bad ass world leader. He owns a giant Italian news network, the most popular soccer team in Italy and he has offered political jobs to extremely attractive models and TV presenters who have no real credentials. Tabloids have also taken pictures of him have a pool party with a bunch of nude models.
I don't think you understand. He is the third richest person in Italy and by far the most powerful. Nobody cares because he controls their main sources of entertainment.