He wasn't inducted for what he did for the Bills, he was inducted for what he did for the NFL (and most importantly for small market franchises). Do you really think he was put in the HOF as an honor for his success in Buffalo? Of course not. He's in the HOF because he was a pioneer of the AFL, the merger would probably not have happened without him, and he is an important and well respected (outside of Buffalo apparently) figure in the league. It's the Pro Football Hall of Fame, not the Buffalo Bills Hall of Fame. You can't look at the scenario through the eyes of a fan.
By the way, 95% of other owners would have moved the team by now, so you should be a little bit more grateful. Success or no success, Ralph Wilson IS the Buffalo Bills. I would shake his hand and congratulate him if I could.