i have a theory on why its because before you had to be an actual artist to get a job doing that. Nowadays kids just take a fasttracked graphic design diploma course and BAM they get a job as the guy that does that..... Thats the problem, that became bigger business handed over to big business which basically runs farms of these designers who also by the way are mainly trained in web design and text heavy print design in these fast tracked courses.....SO the "artists" barely have any real drawing or painting skills, they are mainly just good at design theory and photoshop.... They farmed out the work to mass producing design firms and the schools that train most of their employees dont demand any artistic skill for entry, just money.