The terms "good" & "bad" are constructs invented by humans, most of whom have a vague understanding of them & often disagree with each other. As such, it's impossible for humans to be born inherently possessing some vague, disagreed upon labels that we simply made up.
Yes, this is an old idea going back at least to the time of Shakespeare. Hamlet said that nothing is either good or bad, but our thinking makes something good or bad.
Many people use the terms in reference to their feelings. It feels good it feels bad.
Many would say that making another feel bad is bad. Many make the mistake of thinking a sweet gift is a good thing, but sugar at least in excess, can kill you. Obviously "carbs" have "carbon" and "carbon" (except in moderation) can be seen as something bad.
Low carb or no carb diets are popular and I think effective. I would call them good. Although all of what I have said is obviously a gross oversimplification and one cliché sums all of this up very very well. "The road to Hell is paved with good intentions." ("nice" is not always "good").
Ignorance is bliss. Those who don't pay attention tend not to be angry, but is ignorance really strengh, if, in the long run it can come up and bite you?