I think the idea Luke described Jesus as compassionate and salvation was for everyone is essential. You don’t need to be “perfect” to follow God. He writes being compassionate like Jesus and willing to give to others in need shows us how to model Christ to others. In comparing the actions of the “religious” people of the day who strived to “show” their devotion to God by following laws and adhering to specific rituals, Luke shows us how easy it is to follow him.