I think you misunderstood. With Hogan and the others who jumped to WCW, it was just a purely business thing. Sure it sort of hit Vince hard, since they were his creations, but at the end of the day it was business and Vince had already by that time stolen dozens of talents from other promotions, so he knew how that felt. With Savage, according to the account I heard, it was a really personal affair.
Mind you, I don't know if it is true, but it seems somewhat plausible.
I just did a google search, and this version definitely seems to be somewhat commonplace now. I am not sure who I heard it from, but it was on one of the podcasts WSW(now defunct), it probably from Lanny Poffo or some other wrestler.
Edit: I just did another google search, it was George "The Animal" Steele, who I had heard the story from: here is his account:
Here George Steele explains why Savage was not invited into the Hall of Fame.
Bold(emphasis mine)
“That’s been said a lot of different ways, and there’s been a lot of different things said that are not true necessarily,” Steele said.
“I think that what happened with Randy, when his career was winding down with the WWF, Vince McMahon just loved Randy. After all everything Randy had done and he took him under his wing, and he wanted Randy after the ring was over with for him, he wanted him to be our spokesperson. He was traveling with Vince all the time. Randy was almost like a son, they were really tight.
And then one day, we were at a TV meeting, and we got word that Randy, without calling Vince, had left and jumped to the WCW. I had never seen Vince McMahon broken before, he was crushed. It hurt him big time and I don’t think he ever got over that. I think that’s the real problem to be honest with you.
“I heard all this other stuff that I think is garbage when it comes to Randy and relationships with daughters and all that stuff… I don’t think that’s anywhere’s close to the truth.”
Source:
http://www.24wrestling.com/george-steele-why-vince-mcmahon-disliked-randy-savage/
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