True. I'm pretty much your archetypal left-brained Engineering student. XD
But I do have a history as an artist, and forgive me if my cynicism bothers you, but art is just far too subjective for anything to have any real meaning. You can derive any meaning from anything. The Kermit the Frog dress you mentioned could just as easily mean she likes to live freely hopping from place to place, or she could be a very envious person, or perhaps she just has a pig fetish. XD
Art is rarely intended to have one specific meaning. It's more so about making a beautiful painting, or in the case of the music industry, a catchy song. :P