Life is full of losers who love to mess with people, especially people who are successful. It normally boils down to two things: jealousy and greed. People will try to kill you mentally if you are the top dog. People will annihilate you just for the fun of it, for sport, or to show off to their peers. You have to protect yourself in life. Hope for the best in people but always be prepared for the worst. The same burning greed that makes people loot in emergencies like fires, floods, and blackouts, operates daily in normal everyday people. It lurks right beneath the surface and when you least expect it, it rears its nasty head and bites you.
Your reaction in the workplace or in business really depends on the level of jealousy towards you. If you think its quite manageable then you can just smile at it and do what the moon did to the dog that kept on barking at it, keep on shining. However, if its the nastier type of jealousy wherein people bully you, invent things to get you into trouble, and destroy your good name at your back then strike back and get even. If you want to stop a bully, hit them right betwen the eyes. Go for the jugular so that people watching will respect you and will not want to mess with you. However, always have a good reason to get even and learn to forgive as well.