A scan through my concordance gives me a partial list of who I should honour:
God (Revelation 4:11)
My parents (Exodus 20:12)
All marriages (Hebrews 13:4)
Members of the body of Christ (1 Corinthians 12:26)
Those we send out to serve Christ (Philippians 2:25-30)
Political leaders (1 Peter 2:17)
Everyone (1 Peter 2:17)
In considering who I should honour I have cause for repentance, which is good and necessary.
If I then consider why God requires me to honour all these, then I gain a deeper grasp of His mercies in Christ because all people are given to all of us to provide societies in which we can live and grow and experience God’s blessings. Take away any of these people, including the average, normal people that I have no interactions with and just happen to be there, and my life will be adversely affected. All those people I pass on the way to work are there for a reason, God’s reason. That is plenty of reason for me to honour all of them.