Office politics
This term can be simplified by calling it organizational or office politics, it is nothing but use of social networking within the organization with the use of power of designation by influencing individual or group of people for self interest with no regards or intention of benefiting the organization. Well it might include self interest or personal advantages like a hike in the salaries or promotion by destroying a co workers image at workplace, personal grudge, dishonouring a competitor, or even simply for fun.