Its a character withing many where they are jealous on others property. They just try to grab things from others by doing some malpractice to make it for their own; even though they knew what they do is wrong. These self-centered people are not satisfied with what they have; they don't think about the true fact that, what is given to them is been gifted by God; so they have to be happy with what they have. There is no profit having a cunning mind of being jealous on others. Just keep in mind that what we are now and what we have is something different and precious than what others have. So be happy with what you have and don't try to grab anything from anyone.