My father could have been deported because on his immigration application he said that he was a printer, obviously because he didn't want them to be checking his writings.
Good guy' or 'bad guy', hero or anti hero; doesn't matter to me, what role I play, only the character have something magical.
I'm not sure that you can say definitively that some roles are better filled by consultants, but I would say that some projects are better handled by consultants.