Dogs are lovable but klutzy, and a dog doesn’t give a thought to what he might be knocking over with a wagging tail. Not so the cat. Your cat may occasionally knock over a vase or other household item, but such events are rare because cats are fastidious about not disturbing their environments. (This doesn’t apply to prey or potential prey, obviously.)
A cat walking across a desk, for example, plants his feet carefully, so as to leave things much the way he found them. This is unnecessary behavior for house pets, of course, but it’s the instinct of their wild ancestors, always trying to keep themselves hidden from both potential prey and potential aggressors.