“For the Son of Man came to seek and to save the lost…” - Luke 19:10
It’s impossible to love someone and not care about what they care about. Jesus cares about the lost, and the more time we spend with Jesus the more we'll begin to care about those who are far from Him.
Baptism is going public about your faith in Jesus and shouting to the world your heart-felt commitment to following Him. It's the next step after salvation.