nepotism

/N EH1 P AH0 T IH0 Z AH0 M/
noun
  1. 1

    The favoring of relatives or personal friends because of their relationship rather than because of their abilities.

    โ€œNepotism can get you very far in the world if you've got the right connections.โ€

Source: https://en.wiktionary.org/wiki/nepotism