(2) If, after considering such report and such record and giving the teacher an opportunity of submitting a reply to the grounds on which his or her retirement is contemplated, and having regard to the conditions of the particular service of which the teacher is a member, the usefulness of the teacher thereto, and all the other circumstances of the case, the Commission is satisfied that it is desirable in the public interest so to do, it shall recommend that the teacher be retired accordingly.