There is nothing special about them. Study unconditional election. Study 1 Corinthians 1:26-31.
If you study conditional election, that's where "special" comes in.
What does God being a God of justice have to do with election? If He were to exercise justice in saving, none would be saved. This is about God exercising grace and mercy, electing according to his counsel, will, and purpose. Ephesians 1:11 &c.