Patients can choose if they want to share their data, with whom, and how much or how little they want to share, thereby respecting their privacy and respecting their wishes--and notably, one patient's choice or risk does not affect another's.
For informed consent \cite{PrivacyCommissionerofCanada2018} users must be aware of the uses, users and harms that are reasonably likely, among other aspects.  A neutral trusted entity, i.e., a governing entity (Fig. \ref{469714}) with privacy competence, can guide users to make choices in an informed manner for trustworthy delegation.  Information on uses and harms need not be perfect or exhaustive, because even the most conservative decisions have risk.  The goal is to mitigate risk to an acceptable level for each patient, where each patient judges the risks of use, sharing and disclosure of data, differently.