The fundamental goal is maximizing degrees-of-freedom.
Question, does an object standing still, for all practical purposes, have greater degrees of freedom than an object in motion?
All else being equal the object moving at a constant velocity would have greater degrees of freedom in the direction of motion and less in the opposing direction. Thus overall degrees of freedom would be unchanged.
There isn't any freedom without the capacity to change no-motion to motion, and vice versa...
... or the direction of the motion any which way.
EDIT: Quantum suggests you can have all of them at the same time any which way. Now that's real freedom.