Note another interesting marvel. What we consider as ‘good’ has something ‘bad’ in it and vice versa. To understand this subtlety of Creation and carry on our struggle in this drama of the world is the art of living in fullness. Desire (kAma) and Anger (krodha) are wrong; but this is only a generalised statement.
Looked into deeply, even they have ‘good’ in them. There should be a ‘desire’ for ‘good’ and ‘anger’ against ‘bad’. In fact it is not only not wrong, but essential. In the same way, what appears to be ‘good’ will have ‘bad’ hidden in it.