What did Mother Teresa do to be famous all this time?
She came from a wealthy family and gave up everything to work and live with the poor. She was a nun who devoted her entire life to God and helping the poor.
She helped the poor in a way, naming them Jesus in Disguise, which was the inspiration to the song by Brandon Heath, having the same name.
maybe the fact that she won the Nobel Peace Prize in 1979 has something to do with it.