In the right circumstances, yeah. Usually that bein' some manner or other of medical emergency. Lowest medic can pull rank on the highest general if'n there's a need.

( he only pulled rank a few times in the war, once when captain st. amos was refusin' aid after nearly gettin' his fool ass blown off, an' once on their el-tee.

an' then, almost teasingly, )

Why, I don't seem the sort?