self-aggrandizement self-aggrandizement /ˈsɛlˈfægrənˌdaɪzmənt/

noun

1. An act undertaken to increase your own power and influence or to draw attention to your own importance  ( ego trip [Informal] , self-aggrandizement , self-aggrandisement [British] )
   an act undertaken to increase your own power and influence or to draw attention to your own importance