After working in a meat packing plant liver sausage is the one thing you couldn't pay me to eat.
I got the same way with salmon, commercial fishing them. Now I am just a fish snob, I suppose.
If I worked at a plant dealing with liver or other gut meat I am sure I would have an aversion to the products.
But, like most things that are available people tend to gravitate to the better of what is available. I would love to turn a pile of well handled Sitka Blacktail liver into liver wurst.