Interesting was probably the wrong word. Put cameras in the hands of 1 billion+ people who carry them 90% of the time and you'll get many images that photojournalists just wouldn't historically have been there to capture. [ADDED: And some of those will be inherently interesting.] But to me, quality/composition/control help lead to [most of] the most memorable photos, especially those that aren't just capturing an inherently interesting moment, but mileage on that may differ.