This can be put quite simply - ethics has several monetary costs that being unethical skips. That gets reflected in the prices consumers see. People are used to

This can be put quite simply - ethics has several monetary costs that being unethical skips. That gets reflected in the prices consumers see. People are used to opting for cheaper things and don't get to know the hidden costs to others involved (human and non-human). As long as more people aren't willing to vote with their wallets (at the minimum) and also consider changing their habits and lifestyle (even gradually, if not overnight), there's not much hope for improvement. Talking only about humans, without changes in habits, there's a lot more human suffering waiting in the future due to environmental issues, health issues, lack of food, lack of fresh water, etc. (many caused by or made worse by animal agriculture). As always, those will affect the poorer people disproportionately. Those who care about humans and are privileged enough to choose things in life could do a lot more, even if it's one habit a day that builds up over time.