LONDON – The World Cup has concluded with its usual flourish, and much of the world, as usual, couldn’t help but get caught up in the excitement of it all – which is exactly the outcome that Sepp Blatter wants. Blatter, the president of FIFA, the Cup’s organizing body, wants the afterglow of an exciting month of play to blot out the corruption and backroom deals – and, most recently, a ticket scandal – that have roiled his tenure.