SYS WITHOUT ADMIN OPTION

Why Does the user sys have ADMIN OPTION=NO?

select * from dba_sys_privs where privilege LIKE '%SYNONY%' AND GRANTEE ='SYS';

GRANTEE                        PRIVILEGE                                ADM
------------------------------ ---------------------------------------- ---
SYS                            CREATE PUBLIC SYNONYM               NO
SYS                            CREATE SYNONYM                           NO
SYS                            DROP PUBLIC SYNONYM                   NO
SYS                            DROP ANY SYNONYM                        NO
SYS                            CREATE ANY SYNONYM                     NO

Any ideas?