I can't find any arrogant words Courtois has said in an interview that directly discredit Cech. As far as I could remember, the arrogant image was built from his agent quotes, Wilmots quotes and his comments about Mignolet. In his latest interview I found he has some respect for Cech. The one whom I think is more fitted your description "This guy comes in and acts like a petulant child arrogant prick and gets what he wants without doing a damn thing to earn it in return" is Lukaku