I am not sure how much off field dramas actually hurt codes, its only zealots of codes that take the off field incidents of other codes to make some sort of point.If that is all that is hurting RL then they should not worry too much.
I really wonder about the off field stuff that is associated with RL.
It is only a very very small number of participants involved, but at what stage do the mothers of Australia say enough is enough with respect to violence against women from the "role models" within RL.
AFL, Soccer and Heavensgame do not seem to have the same off field dramas that RL does. It beggers belief that seems to be almost tolerated by many within one of Australia's major sporting codes. Clearly the NRL itself take a rather dim view on the issue but much of what happens at the next level down seems to be largely rhetorical.
In the longer term, this lack proactive action on a rather serious societal issue could harm RL much more than the boring as batshit game that is is. Never underestimate the power of the sisterhood. They are 50% of the population.
Also I think you will find AFL has similar sorts of issues but its reported in southern papers, for instances Stephen Milne (a good player??) is / was on some very serious charges, certainly a lot lot more serious then blake ferguson.
Then there was the collingwood rumors with similar sorts of incidents involved, and I am sure there is more. The fact is people dont care here in NSW QLD so it doesn't get the same press coverage, but I am sure if you spoke to the average melbournian they could tell you all about essendon and asada and other issues going on in the game.
In england, I remember bosnich getting up to some serious fun, and I am sure their are many others. But obviously we dont read english reports. I am sure the average english soccer has the same moral compass as an australian one, possibly with a bit more cash.
As for rugby union players, well, it goes back to the topic that the code may be in a situation where the media couldn't even be bothered writing up a story about the mischief.
Or of course rugby union players are just far far better behaved then there counter parts.