I don't believe so. But drawing scales are listed in the order in which the drawings are placed on the layout. So to force it to the end of the list, you could cut and paste it back in it's original place. Then on the layout you could apply a solid fill over the scale to hide it.
It is quite common to show the drawing scale in the drawing's title, rather than the title block. So you may want to consider that too?
Cheers,
Link.