Yes, as dogs evolve and become more intelligent it's very possible they will invent a hierarchy similar to the Vatican. Can you imagine the top dog all decked out in that garb? Then, all the lower dogs will go into a box, confess their sins, and contribute 10% of their Kibble & Bits. This will insure the top dog and his henchmen live a long and fruitful life of authority and luxury. They will even have their own funny looking guard dogs dressed in stripped bloomers.