Sanctimony

Self-righteousness (also called sanctimony, sententiousness, and holier-than-thou attitudes) is an attitude and belief of moral superiority derived from a person deeming their own beliefs, actions, or affiliations to be of greater virtue than those of the average person. Self-righteous individuals are intolerant of the opinions and behaviors of others that they deem to be less moral and virtuous. A self-righteous person will often exhort or rebuke certain behaviors and actions from others.