As stated its a suggestion they don't have to be those certain jobs but considering both have Expert or Pro you'd think they have a bit more brains than the average D class(rp wise) and have keypad crackers making them seem more of a leader for a riot than your average D class
So staff go about enforcing the rules? Whenever I'm on staff I barely if ever leave D block because of GenSec complaining about constant rioting that last for hours on end, RDM calls with D class killing other D class, Researchers complaining they can't RP, D class calling sits for RDM because a lock down has been in place ETC ETC.
It's not hard to control what goes on ingame specially if you had out punishments that fit the situation. RP in LCZ needs to continue instead the hours on end rioting that GenSec leave the server because of it, atleast in this way it's something Staff can control.