Unlike a lot of other situations where someone who did some vile shit just basically got the equivalent of a shrug and tongue-wagging, I'm more okay with this specifically because it seems like she's beating herself up to a level where that's a pretty bad punishment all its own. I don't think anyone will hate her more than she hates herself at the moment.
a proper punishment still needed, just look at his maid, just look at how disappointed she was. not just her actually (except the 2 in the last page). even then she herself NEEDED the punishment, at least when she actually had remorse. the punishment should relieve her guilt, no matter how much it is. and even then he's making a favor with the king for your enemy for no reason, the heck is that???
for example if she got salary, no salary for 3 month. if she only got her body, work without pay for 3 month, etc. not just slap on the wrist and done. what's the difference then??? sure this kind of naivety would work for a population of 20 or so, but what about 100? 1000?? there will be anarchy