She says that 'virtue' is its own reward. [=that if you do good things, you do not need to be rewarded with money, fame, etc.]
When he lost his driver's license, he 'made a virtue out of necessity' and got in shape by riding his bike to work.
His supporters regard him as a model/paragon of 'virtue'. [=as a person who has no moral faults]
(..) ...for we are called to purify this filth. What does she mean, Mommy? You're weak, my dear sister. You always were. Trust us, Dahlia. Have faith in our virtue. We will restore innocence. They had met many times since the town was built... ... and you were very good at following my clues. (..)2006 Silent Hill