Where in the case of a member of a registered society or a person claiming through such a member the society's committee is satisfied after considering medical evidence that the member or person is incapable through disorder or disability of mind of managing his own affairs and is also satisfied that no person has been duly appointed to administer his property on his behalf, and it is proved to the satisfaction of the committee that it is just and expedient so to do, the society may pay the amount of any property (whether in shares, loans or deposits or otherwise) belonging to that member or person to any person whom it judges proper to receive it on his behalf, whose receipt shall be a good discharge to the society for any sum so paid.