profile fields cannot be disabled from user editing

It says

Display in user control panel:
The user is able to change this profile field within the user control panel.

(which is not ticked)

and

Hide profile field:
Hide the profile field from all other users except the user, administrators and moderators who are still able to see this field. If the Display in user control panel option is disabled, the user will not be able to see or change this field and the field can only be changed by administrators.

(Which is ticked)

**But it does not actually matter if Display in user control panel is ticked or not, field is still editable by the user ?