If you choose a life of crime, live it till end , i agree rats are worst of the worst ,especially that 99% of them would continue living life of crime if they don't get arrested. Same with policeman , if you choose to be policeman, don't be a dirty cop , its same thing.

But i also justify wave of rats during 80's and early 90's when Riina broke every single rule and started killing innocent children and relatives. A lot of people flipped because of that.