Audience of One
When Luke wrote the books of Luke-Acts, he definitely wasn't seeking to cater to the wide readership the Bible has today. In fact, it wasn't even for a single community. His book was addressed to one person - Theophilus.
Luke 1:1-4 - Inasmuch as many have undertaken to compile a narrative of the things that have been accomplished among us, 2 just as those who from the beginning were eyewitnesses and ministers of the word have delivered them to us, 3 it seemed good to me also, having followed all things closely for some time past, to write an orderly account for you, most excellent Theophilus, 4 that you may have certainty concerning the things you have been taught.
We note from Luke 1:1-4 that Luke was writing with an audience of one in mind, and we can imagine the care, energy, and time invested into this one individual. But his investment was centered around the teaching of Jesus Christ, which is something that many of the social justice movements today should be aware of; our care for others must be accompanied by the teaching of what Jesus did for us. It is when we focus upon one soul, one person, that communities are changed, nations are reached, and the world comes to understand the beauty of our God.