Sometimes, a mystic or a master, will say one thing and do another. As an instrument of God, sometimes the spontaneous and hard to reason behavior appears to satisfy a greater picture we are not able to comprehend. Maybe it makes sense later, maybe even the mystic or master does not know why they behave in a seemingly contradictory manner... But in the end, we can say it was Gods will.
God uses us as he sees fit. Masters and disciples, Saints and sinners...
Perhaps a wrong action, isn't necessarily wrong.
There may be particular reasons for a saint not to walk his talk, but generally speaking, I find that should be avoided. The enemies would take advantage to harshly criticize, and friends and disciples would be confounded. Unless, of course, there is a lesson behind that and it is explained in due time.