Ethics and morality are exactly the same as legality.
Technically, I can lie to you. I just did, and it's legal, as I did not cause you harm in any tangible way.
It's legal but not moral. Many things are like that, and most are far less black and white or obvious. This is a difference you need to be very conscious and careful of if you intend to work... anywhere, ever.
Most of the companies you're likely to deal with -- whether it's in an employment situation or in a consumer transaction -- are so large that your interaction with them will be governed by policies, not by morality, and policies are set based on what's legal, practical, and profitable.
Technically, I can lie to you. I just did, and it's legal, as I did not cause you harm in any tangible way.
It's legal but not moral. Many things are like that, and most are far less black and white or obvious. This is a difference you need to be very conscious and careful of if you intend to work... anywhere, ever.
Most of the companies you're likely to deal with -- whether it's in an employment situation or in a consumer transaction -- are so large that your interaction with them will be governed by policies, not by morality, and policies are set based on what's legal, practical, and profitable.