I think it's an interesting topic to bring up, though. Matthews has always come off, to me, as all about the money. If we contrast that to someone who doesn't seem that way (although we quite obviously don't know) who, in my view, is Skinner - which do you want on your team? Does it matter?
I have no issue with guys that are all about the money, some who are when I discover that is their thing, it surprises me, but this is rare. I think I can usually spot a player who is motivated by their bank accounts. You can also add status/image to that. Kane is a fine of example of a money/status/image-motivated player.
Many of these guys who don't have winning at the top of their list of motivations, though, combined with some sort of love-for-the-game or feel-it-in-my-bones type of motivation can have a reckless streak in them. Again, see Kane (actually, both Kanes). Who doesn't envision Matthews putting himself in a partying football-player-esque situation at least once? Might not be fair, but if it happens I wouldn't be shocked.