Jason
I tried the same, assigned "Administrator view" and sub roles Organization - "View Organizations" and - "Edit Leases Policy". Administrator Tab is not shown.
For me, the "Administrator View" role is really useless. The only thing it does is that now the user sees all vApps (but no rights to them).
But there is a workaround:
If you assign the role "Administrator Control" (without any permission for section User, Organization, Organization VDC and Organization VDC network), the Administrator Tab is shown but it is empty. In this way you can specify the items he is able to view in the Administrator Tab.
Disadvantage is, that the user has now control to all vApps (Power On, Power Off, etc). Don't know if you want to avoid this.
Christoph