[s3e12] Sic Transit Vir Here

Londo Mollari discovers Vir’s activities. While Londo is initially furious at the risk to their political standing, the episode highlights the growing moral chasm between the two Centauri.

Vir returns to the station from his diplomatic post on Minbar to discover he has been "engaged" by his family to a woman named Lyndisty. However, it is revealed that Vir has been using his position to secretly smuggle Narn refugees to safety, issuing them false papers under the pseudonym "Abraham Linconi." [S3E12] Sic Transit Vir

This episode is frequently cited by fans and critics on sites like The Lurker's Guide to Babylon 5 as the moment Vir truly finds his soul, proving that even "small" people can perform heroic acts during wartime. Londo Mollari discovers Vir’s activities