It's jealously, envy, bitterness mouth testing. A lot of people out there drives by their failure than achievements. They lack skills but works hard eventually only working hard is not taking you to the top. Skill and hard-work along with other success factor makes a man to achieve their desire. Well obviously your ethics should be not harming others.

Don't forget there are these other type of people. They seek opportunity to stay with the trend and allow themselves to get some attention.