Mercurius, you're probably just going to have to agree to disagree about this one with a lot of people. There's all kinds of precedent in various published settings for gods of dragons, dragons worshiping gods, etc.
At worst, you're simply blaspheming against the written word. At best, it becomes a semantic argument about the meaning of the word "worship."
From reading Wyrms of the North, various iterations of Draconomica and other dragon-related fluff.... I also find it hard to justify most dragons "worshiping" in the definitive sense. The psychological profile doesn't fit, IMO. Standard modern industrialized nation lip-service "worship" or "reverence" might be a better fit.
Actually, I think dragons make better analogues to old school gods than D&D gods do.
Pre-industrialized societies tend to have very capricious gods, with very little direct cause and effect between what the worshipers do and how the world treats them. No one in a D&D-based society really has that problem with their gods. Their gods show up and talk to them, grant miracles to their adherents all the time, etc. But, man, do they have that problem with dragons. Big, capricious lizards with magical powers who show up out of the blue and wreck livelihoods or entire communities at random. They are the D&D world analogue to disease, flood, and every other natural calamity that D&D magic is otherwise very good at stopping cold.
They are the best available equivalent to Old School Wrath of the Gods. Even if they are not the baddest boys on the block, that ought to go to their head.