Let me put it in another way. If you're in for a new computer and you buy the latest core i7, nobody finds that strange. Everybody finds it normal that you buy the latest technology. When you're in for a new camera and you want to buy a 36 Mp one, because that is the latest technology too, everybody on the Canon forums finds that strange. Why is that ?
Because that's not a very good analogy.
Imagine instead we're discussing sports cars. Do you buy the one with the biggest engine displacement, or the one that has the highest top speed / shortest time on the course?
Megapickles are important, yes, but mostly in the sense that you're not going to make it through the race without at least so many. But, just as your sports car is going to get smoked on the track if you've got lousy breaks and so-so steering, your high-megapickle camera is going to give you worse pictures at the wedding / sports arena / wildlife preserve than the low-megapickle one if it can't achieve good focus, if it's got a slow framerate, etc., etc., etc.
Now, if you're just doing straight-line quarter-mile drag racing, the car with the biggest engine displacement is probably the one to bet on. Similarly, if you're just doing studio photography with studio lighting and what-not, the high-megapickle camera is probably the one you want. But do keep in mind that the top-fuel dragster will laugh at your silly hotrod, as will the medium and large format cameras at your puny SLR. But did you ever try to pop down to the market for a bag of groceries in a top-fuel dragster, or take party snapshots with an 8" x 10" view camera?
Horses for courses, and all that.