Jefferson Davis had plantations and his business manager, and dare I say it, overseer was a black man. This man had been educated to read, write and do the necessary accounting. IIRC he was still a “slave”. But as a valuable asset, for some reason, he was NOT horsewhipped just for fun. I doubt he horsewhipped any of the other slaves. I guess he was an “Uncle Tom” though.
The man was more than that. I recall reading that when the Union army invasion was imminent, Jefferson Davis signed over all the property he owned to this man. When the Union army came to claim his lands as a war prize, they were informed that Jefferson Davis didn't own the land.
This man held Jefferson Davis' land until after the danger of confiscation had been passed, then he signed it back over to Jefferson Davis.
I would say this would be the behavior of a true friend.