Bennyboy doesn't realize Vick didn't go to jail for killing underperforming pit bulls.
The federal crime was running an interstate gambling operation under RICO laws, and lying to the FBI about it. Animal cruelty was an aggravating factor considered in sentencing.
Anything else about the dogs was a state offense, and he agreed to a plea deal with no additional prison time.
Nothing Vick was accused of was anywhere near as serious or immoral as DUmmy Bennyboy secretly pulling the plug on his mother's life support.