Who lived a life of love and service to god and helping lepers?

Basically that is Jesus Christ who spent His time devoted to Serve God and helping the lepers who were considered outcasts.

according to the law of Moses, lepers were considered unclean and therefore were not supposed to be in the public and were made to wear the bells on their necks and make sounds to alert people that they were present and people would run away because leprosy was considered contagious and so would make one unclean

so JESUS came and welcomed the lepers and even healed them for example HE healed ten lepers and further on another leper