DOOM is actually big business. Check out all the disaster movies out there. DOOM sells. What could be more important than... THE END OF THE WORLD? What greater cause could there be than... SAVING THE WORLD? So, people buy the DOOM merchandise, contribute the DOOM dollars, and warn their friends about the impending DOOM - thus perpetuating the DOOM virus. That is part of why there have been so many DOOM prophets - DOOM pays.