Did he though? When he made his original transfer request he did everything right, it was all behind closed doors and he didn't speak to the media. It was Fergie that called a press conference to announce it because he didn't like the fans chanting his name. I don't know where these ideas come from that it's an ego issue either, he played second fiddle to RVN and Ronaldo for years with no problems.
Rooney has not really said anything him self, its been his poisonous agent up to his old tricks. Both times it was as you say Fergie declaring it though Rooney denies his 2nd transfer request, it depends on whether you trust Sir Alex i definitely do i just do not agree with the way he handled it - left Moyes with a shit heap of trouble.
I remember him playing a lot on the left wing 4 or 5 years ago, dont think he is in any way frustrated with not being played as a striker. If anything he has been our main player even last year, helped out when RVP was barren but also set up many of his goals.
If he was serious then he would of handed in a transfer request when we declared him 'not for sale', does he really need the bonuses?