The thing is that there wouldn't be any judge that was pro dog fighting or pro being curle to animals. However, there is a jurry involved as well. It is not all up to the judge himself. And, if I am worng that there is no jurry and it is up for the judge to decide himself then as a judge you have to sentecne someone base on what they are charged for.
In other words, for all crimes there is a set number of years that they can get jail time for. Even if the judge hates the fact that he doesn't like dog fighting the judge cannot change the maximum nuber of years from five to let's say ten or more.
"If you try to shag my husband while I am still alive, I will shove the art of motorcycle maintenance up your rancid little Cu**. That's a good dear"
Tom Stoppard's Rock N Roll