What I remember most about Ultima IV was the blind shop keep who determined if you paid her the correct amount by hearing the clink of coins. So you could buy anything for 2 coins so they clinked against each other. I thought I was so smart, but my 9 year old self didn't realize that the game was about building virtue...
What's particularly fun if you read some of the modern guides, now that the game is thoroughly understood, is how to game the system. Buy stacks of reagents from the blind women, crashing your honesty to the bottom, then boost it back up in the most expedient way possible later. Steal everything not nailed down in the early part of your run-through (if you play honestly the whole way through, resources are actually sorta hard to come by), then use the stolen money to give to the poor for Sacrifice, then later on fix your honesty (or whatever stealing counts against, I forget) in some expedient manner.
I find something quite hilarious about the idea of a MinMaxing Avatar of Virtue. Minmaxing often breaks the mechanics of a game, but it's rare to see it break the morality of a game the way it breaks Ultima IV.