The difference is SCALE
Fields where wheat is grown (as an example) never ever used to have raw manure spread on them, now it happens all the time in order to produce enough
I too licked the spoon, no longer
And when you know better, you do better
And in all reality we probably wouldn't need to use the raw manure if our food system was focused on sustainability and not the fools goal of infinite growth. There is only so many mouths to feed and farmers trash an upwards of half their produced crop. (winter wheat is one of the big losses, around 20-33% of it is wasted in the US per year).
Shitty practices, pun intended, for the sake of maybe increasing profits slightly is, imo, one of the largest causes for most of our food safety failings. Over use of pesticides, not holding animal production accountable for fecal control (run off into joint water supplies and having animals live and eat in their own and others feces), overuse of antimicrobials is finally catching up with us and is why STEC E coli. has proliferated to being one of our main concerns. We gave it opportune breeding grounds and are resistant to actually making the changes that mitigate it because it is "just a cost" and "doesn't increase profitability".
Honestly, Food Safety being viewed as "just a cost" instead of understanding that it is a needed public service that is a prerequisite to do business is probably the most infuriating part of this profession. We really need to get back to being Stakeholder centric instead of Shareholder centric