Its the problem since the beginning of nba 2k15 and they didn't even do anything to prevent from this to happen in 2k16 that the exact same change of some values in exe file works to boost your myplayer. Pretty sure they all know this is happening for a while.
Its really weird nothing been done about this issue, its not just annoying for the legit players. Also there is no point for anybody on pc version to buy VC since you are able to unlock everything+ more than available for free with few clicks.