That's something I learned in art school. I studied graphic design in Germany, and my professor emphasized the responsibility that designers and illustrators have towards the people they create things for.
When I studied graphic design, I learned a valuable lesson: There's no perfect answer to the puzzle, and creativity is a renewable resource.
Apart from photography and music videos, I also do graphic design.
If I was influenced by anything, it was architecture: structure having to do with logic. If you don't do it right, the whole thing is going to cave in. In a certain sense, you can carry that to graphic design. Fortunately, however, nobody is going to die if you do it wrong.
Of course, I did lots of what would be called graphic design now, what used to be called commercial art.