I'd say a definite
NO for a server, especially in a commercial environment.
I'd hate to be halfway through some sort of data critical transaction to have some non-administrative User twonk shut the server down before it had completed satisfactorily.
Most commercial 24/7 servers need a dispensation from the Archangel Gabriel (or higher!) to be shut down. Certainly not by a User.
End of rant.
Play Bonny!