No.

"Virtuousness" is a common noun. It refers to the quality or state of being virtuous, which is a general characteristic rather than a specific person, place, or thing.

The motto of Guangdong Zhongyuan High School is 'Virtuousness, perseverance, erudition, vigorousness'.

Self-righteous indignation refers to an excessive awareness of one's own virtuousness. It is a feeling that one is morally superior over another.

I will supply seven words to get you started: rectitude, probity, virtuousness, beneficent, benevolent, exemplary, and propitious.