nepotism - When those with power or influence favor relatives, friends, or associates, such as by giving them jobs or ruling in their favor.

The public was disappointed by the nepotism of the newly elected mayor, when they saw that his whole government was filled with incompetent friends and relatives.
repercussions - The effects or results of an action, event, or decision, especially those that are unintended or negative.

His decision to suddently quit the company without notice had serious repercussions, hurting his reputation and making it hard to find another job.