[systemd-devel] Who has rights to override/ignore inhibitors?

[Jayson Willson]

Hello. I have realized, that my user (groups: 
tty,disk,mail,news,dialout,voice,sudo,audio,www-data,video,plugdev,users,mlocate,kvm,vboxusers,libvirt) 
can ignore inhibitors (such as root being logged in) using "systemctl 
suspend -i" without password prompt (though su, sudo and polkit do 
require password).
Could you please tell me, which users can ignore inhibitors, and what 
should be changed to change such behaviour? Thank you.