Context of Practice: Is there a fine art to illustration?

During this post I shall refer to an article by Marshall Arisman which can be found on this link: 

Is there a Fine Art to Illustration?

                                                    Stanley Kubrick by David Levine

I affirm that all artists are to some extent interested in making a profit, and that  clean-cut distinctions are inapplicable.
Caricatures are fueled by both the artists' personal absorption with celebraty and the enticement of money. Levines' caricatures were created for the purpose of being bought commercially. In-fact the use of a celebrities' likeness is popularly used as an endorsement.

                                           Richard M. Nixon by David Levine

Above, he is communicating his low opinion of Nixon, he is gorging on grapes with his arm around a bloated pig. The subjective is introduced, the distinction between personally fulfilling and accessible work is blurred. Under the outdated system of dividing 'fine' it simply meets both the criteria.