Yes, Jesus Believe Lowly People Are Valuable.  He healed lepers and even the Gentiles.  He ate with the tax collectors and He says " For I have come to call not those who think they are righteous, but those who know they are sinners."  Matthew 9:13 Jesus has compassion for All.

The extent of the valuability can be seen in Matthew 12:11  that tells of a sheep that falls into a pit on the Sabbath and a parable on the Lost Sheep Matthew 18:12~14.