I agree with Late Tackle's point - I think far too many match defining penalties are now given for minimal/negligible contact that has no obvious impact on the attacking player (a lot of this is due to attacking players exaggerating such contact of course.)
But what do we do about it?
We have referees who consistently give free kicks and penalties for this. There is nothing being done to clamp down on diving, nothing being done to clamp down on exaggerating contact (think Alioski, Lamela).