Hi @David_Tran,
none of these roles, can perform the shutdown action.
I recommend that you add an appropriate role to perform the shutdown, such as hostManager, as defined in the documentation:
database administrators are not server administrators, and this shutdown operation requires the latter one.
let me give you one needle from the haystack: the page section Fabio linked above gives “hostManager” as an example. check below link and see what other built-in roles you may use, or surf the nearby topics on the left for the permissions you may assign to a custom one.