What is BAD, what is GOOD, how can we define?
Why people have to be "bad" ? they wanted to be or they were forced to be?
If someone have a choice, do we all choose to be "bad" or "good"?
There are rules controling us not to do this or that, haven't followed the rule, then you are considered bad.
Talking about human relationship, between friends, couples, colleques, we always think about ourself are at the good side while others are bad. We always say that this one is getting to my nerve and that one is too something. Have we ever use a mirror to look back on ourselves and consider the whole situtation. Yes, you did, and still, its someone's fault, not yours.
This is the majority of our human society. Everyone is protecting themselves, seeing oneself as the main unit while others are sub-subjects.
But, how do we define a "bad" friend, a "bad" college? it's all depends on our own experience and the most important point, our own characters. We all grown up with different enviroment, with different experience, out character decide what we act, which on the other hand decide what we think what is good or what is bad. Someone may say cheating others is not actually bad, someone may strongly disaree. Therefore people who think the same will get together, they don't think that they have problem and keep on cheating others, and the point is, at their point of view, that is not "bad".
There is a chinese saying 物與類聚, that means people group together as a kind. Other then the "bad" coming from the rules, we define good or bad depends on our point of view, in other word, there is no "bad" or "good" in this world. Sometime bad, sometimes good, depending on situation. If we do not define good or bad, may be there won't be too much hatred in our heart, may be human relationship becomes better, may be the world is becoming more peceful.