Lol, no I don't think he ever does that, and it's not fair of me to make fun of him like that! He's a good driver in his own right, but it's mostly the press playing up the "crown prince of F1" card.
Having said that, no driver really "deserves" to win any championship other than the winner. There's a whole season to fight for, and the one who fought the hardest in the end generally ends up with the win. Even if we take double points into account, it's artificial but it's something all the drivers knew going into the championship this year. If Hamilton had done better throughout the season, he could have won the championship in Brazil. He didn't, so now Rosberg has a chance. If Rosberg had been more consistent throughout the season, Hamilton wouldn't have been able to catch up and overtake the lead either.
So in the end, whoever wins the championship tomorrow, I think deserves it. Neither of them deserve it now, because the final race isn't over. There shouldn't be any sour grapes.