“Fiduciary”? The legal definition:
A fiduciary is expected to be extremely loyal to the person to whom they owe the duty (the “principal”): they must not put their personal interest before the duty, and must not profit from their position as a fiduciary, unless the principal consents. The fiduciary relationship is highlighted by good faith, loyalty and trust, and the word itself originally comes from the Latin “fides,” meaning “face”, “fiducia”
That automatically means a fiduciary can be trusted; right?