Well first off, morality is just something that can be learned as someone gets older. I think a lot of how we learn right from wrong is from consequence. What you can implement is something called Operational Conditioning.
You said brief so basically what that is, behavior that leads to something. Whatever that result is, if your behavior leads to a positive result it will be repeated. If your behavior results in punishment, you will avoid that. It's something that humans do.
You do your homework you get ice cream, you don't do it you get spanked. That's a good summary of it. I think a factor of telling right from wrong is from what actions leads to reward or punishment.
Usually due to not paying workers enough, especially using workers in developing and poor countries which are desperate and will do work for very little. Big companies can sell cheap clothes but still make a huge profit from paying workers little.
People during that time were not treated medically well, mainly because at that time people did not have a proper understanding of mental health issues
