Accepting a person or idea humans tend to need to see a face before making a choice.
I could not, see myself casting a vote for a candidate I never have seen, marrying a woman without meeting her first or even accepting a controversial or difficult concept without scrutinizing the presenter. This appears to be a common trait shared by most people. Looking through history books I discover many portraits and even busts and statues of important people (real or mythological).
In the dim past recognizing a threatening person was a crucial part of survival and that seems to be true even today.
Radio was great but people wanted to know who it was that they were hearing.
Our very large federal government used a face to help recruit soldiers for a cause.
Even most religious movements seem to present an image of a founder, or at least a contemporary leader.
Saul the first king of Israel was described in positive terms; his subjects surely judged him favorably by his appearance:
1 Samuel 9:2 ESV
And he had a son whose name was Saul, a handsome young man. There was not a man among the people of Israel more handsome than he. From his shoulders upward he was taller than any of the people.
Be aware of your own distortions and prejudices: egocentrism
Titus 1:12-13 ESV
One of the Cretans, a prophet of their own, said, “Cretans are always liars, evil beasts, lazy gluttons.” This testimony is true. Therefore rebuke them sharply, that they may be sound in the faith,
Examine your thoughts; are they your own or has someone planted them within you; are you gullible.
Proverbs 6:16-19 ESV
There are six things that the Lord hates, seven that are an abomination to him: haughty eyes, a lying tongue, and hands that shed innocent blood, a heart that devises wicked plans, feet that make haste to run to evil, a false witness who breathes out lies, and one who sows discord among brothers.