JBJ got his title shot after defeating Bader, yes. But there were other factors to that title shot as well. For one, the original contender (Rashad) was injured. Another one was Bader being a lot higher ranked than he is today (pre-Tito). Not sure about how many other fighters was available for a title shot either, and JBJ had looked incredibly good against most opponents at that time. Tito hasn't.
Tito basically beat a lower ranked Bader, coming from losses and injuries.
Not saying Tito couldn't be contending for the title, stranger things have happened, especially concerning "big draw fighters" such as Tito. But his situation isn't really comparable to JBJs situation post-Bader.
Well, just before he lost to Tito, Bader had only been beaten by JBJ, as did everyone in his path, (except Hamill for the DQ). So Bader stock was almost as good as before the JBJ fight. He wasn't the favourite, and he was supposed to lose to JBJ, and he did. He had won the rest of his fights. He was no gimmie to Tito.
And, well, Jones had lost to Hamill (DQ, but still a loss), and defeated Vera, Matyushenko and the said Bader. The only top 10 of the bunch. None of them champions or even title contenders.
On the other side, Tito lost to Chuck when he was still champ, then he got a draw to Rashad, unbeaten at that point, that should have been a win if not for the very strict 1 point deduction, then decision loss to an untouchable and unbeaten Machida, and a very close Split decision to Forrest Griffin. All of them have been champions, and all of them clear top 10s, and even top 5s at the time of the fight. He hasn't been fighting mid-range fighters or cans. The only bad loss was to Matt Hamill, but hey, even Jones lost that one.
So, I'm not saying give him a title shot, of course not, but why not Shogun?. Another champion and top 5, or Rampage. Tito always fights the best. Although the fight with Rich would be interesting too, but basically useless for both of them.