I don't think Leonard did enough to take Haglers title. Considering what Hagler achieved & the manner in which he acheived it I think he was treated pretty badly in the run up & aftermath of the fight. I don't blame him for turning his back. Hagler was easily an equal in stature as a fighter to Leonard but as a casual fan you wouldn't have known it in the run up.

Hagler was a proper fighter, made his way up the ranks, was avoided & got robbed in the Antuafermo fight. I would guess that most boxing fans respect Hagler more than Leonard.