He's on a self-indulgent 'ego trip' with his latest movie, which he wrote, directed, and starred in himself.
Winning was good for our 'egos'. = Winning boosted our 'egos'. [=winning made us proud of ourselves]
a bruised 'ego' [=a feeling that you are not as important as you thought you were]
(..) Superbly done. You've been of great service. The cryptex has yet to be opened. I can still serve. You've done enough. We cannot let ego deter us from our goal. I understand. Good. Wait here, at this house of Opus Dei, and you will be rewarded. (..)2006 The Da Vinci Code