It can be. There are lots of stories of USDA inspections being lax. For example (https://www.motherjones.com/food/2015/02/usda-whistleblowers...). Meanwhile, the meat industry is investing in "clean meat" with surprising alacrity due to consumer demand (https://www.gfi.org/2017-a-wake-up-call-for-the-meat-industr...).

of course it can be. in a market if stuff is not accepted anymore it stops being sold and practices change. We can still have a fUnctional economy without 30 volumes of new regulation written every single year.