Administrators cannot usually alter personal information of others.
If you create you own account, by default, organization administrators cannot change your personal information. If an administrator creates an account, by default they will be able to alter the personal information for that account.Members should manage their own personal settings, not the organization. The organization is not blocked from altering values associated with the organization. They just cannot alter names and addresses and such.
Members alter their personal information using the website menu “My Account”, “My Account Settings”.