Only before reaching the top, you're hardly keen to see him leave. If youre happy for our stars to leave and try spain, france or germany as they havent played there then you can defend that, as by extension to your point if ronaldo has more balls (a positive thing) than messi then you'll have to be happy for any of our stars leaving even if it weakens the team, because at least they had the balls to emigrate to barca, madrid or munich than show any loyalty.
Id take messi's attitude in our players every day of the week and twice on sundays.