A lot of people assumed WWE put the title on del Rio simply to give Dolph Ziggler a more manageable opponent. We now know they made the switch because Big Show was having issues renewing his contract, and WWE really wants to focus attention on ADR for the time being. HOWEVER, there's no reason why one can't lead to the other.
Alberto del Rio is hands down one of the best in-ring stars working in the world today. To say nothing of his character, he's just a straight up boss in between the ropes. Dolph Ziggler is a selling machine, but in the last two years he's also come into his own as one of the best workers in WWE. Some don't like his promo style, but I think if he put on another 10 pounds of muscle he'd have the total package. In relation to his Superstar potential, not his penis.
For fans of great wrestling matches - which SHOULD be all of us, no? - there is only good to look forward to between Ziggler and del Rio. I'm not sure how they're going to work from a promo standpoint, but I'm intrigued to find out. My gut says they're just too different, and would have clashing charismas. Much like ADR and Punk in 2011. But I'm intrigued enough to find out.
Also, on a side note worth mentioning, I am looking forward to any potential interaction between Big E Langston and Ricardo Rodriguez. Actually, that'd be a hilarious tag team match.
I'm guessing WWE will run with Alberto into Mania as the Champion. He'll win the rematch against Big Show at the Royal Rumble. Elimination Chamber doesn't really require a feud, because it'll be him and 5 other guys. That's kind of a crap shoot - I'm guessing ADR, Big Show, Sheamus, Randy Orton, Dolph Ziggler and a wild card ala Santino to throw in just for fun. If it were ME booking the match, I'd Randy Orton win the title in the Chamber, and then have Ziggler cash in on him immediately afterwards. This sets up the Triple Threat for WrestleMania.
When has Ziggler ever helped anybody get over
At this point in his career, it is 100% his job to get himself over. Wait till he's an established main event player, and a veteran of the business. But it really isn't his job to get anybody else over. He's still trying to put himself into positions where he can showoff; pardon the pun. You can't fault a relative noobie for not putting over enough people. That being said, if he manages to make other people look good in the process, than awesome! And it's my opinion, and I stand by it firmly, that if you can put on a great wrestling match and make you and your opponent look good, than you have gotten both of you over. Shawn Michaels and Chris Jericho were masters of getting everyone around them over, late into their careers. Every match they had made their opponents look just as good as they did. Ziggler has that quality. TLC match against Cena was one of the better Cena matches of 2012. His title match against Edge was one of my favorite matches of 2011. Every single time he steps into the ring, wrestling fans take notice and say "oh sweet, Ziggler is wrestling. This should be a good match." And that quality gets him, and whoever he's wrestling over.
So yes, I do think Ziggler has helped a bunch of people. Neither is that his job, so early into his career.