God's emphasis should be our emphasis. You cannot help build it like you should if you are not a part of a local church. Every believer should join a local church and help build it so he makes a bigger impact on his community and the world. Remember that the Lord Jesus is where two or three are gathered in His name. Be a part of it.
Baptism is part of the great commission and one of the first steps of discipleship.
To do a good job of discipleship, Churches should urge people to follow the Lord in believer's baptism after being saved. Sheep need a shepherd. The most natural thing is for a sheep to go astray. He needs a shepherd to lead him. Sheep need to be led to food and water.