I don't understand why, or even what control are you talking about. If what you are trying to say is that the priest performing a sacrament might not mean it, then the Church teaches that the sacrament remains valid despite the disposition of the priest. It is always the same sacrament regardless of the priest, presuming it is validly confected.
Dear annalex, you really should stick to preaching to cows. The bible teaches, in more than one book and lesson, that the priest can be good, bad or indifferent. The HS and His actions, are dependent on God, not a priest.