Put the pitch forks down. Generally speaking men tend to travel in packs of like minded men. Its why many of us are baffled, confused or grossed out when we hear things like a group of guys creating a group chat to share their girlfriends nudes.
There's generally very little over lap in archetypes of men in terms of core values at least within our close circles. This is because generally if we find behavior grating then we don't want to be around it, least of all from other men.
Accountability is something that tends to require sustained effort. It's not often that you hear something once then change immediately. It helps to be within an environment that is conducive to sustained change. Almost like getting in shape. But as I mentioned men do not like to be around or associate with behavior they find unappealing.
As you know what's appealing or unappealing differs from person to person and group to group. In a perfect world, every man would be on the same wavelength and messaging to create a sustained environment of accountability everywhere. But this is not a perfect world. Look at your neighborhood as an example. There are very good areas and there are pockets where you would advise people you care about to avoid. Yet there are people who still seek out those bad pockets for the next reason.
Another reason group accountability is difficult is that there are many men who are actively rewarded for their bad behavior. You've probably heard the recent adage that an abusive man has no problem finding someone to abuse. Now its not an abused person's fault for being abused. But if theyre an adult they do bear some responsibility to themselves to leave yet they often dont for various reasons.
What makes that even more interesting is that man becomes a representative point connecting multiple people who have targeted grievances about men because of his specific actions. So these men create ecosystems of people who bear the brunt of their behavior and that gets caste on the entire group. Which is sinister because that casting provides him unintended cover. If its everyone then he's a needle in a haystack. There's no reason to address why specifically he is able to consistently find people eager to be around him.
In many circles his behavior is seen as something that must be tamed or is even okay so long as his approval is received. Other men can advise him to change or exclude him but what incentive does he have to change if is consistently rewarded for his behavior? Why would being excluded from a group expressing behavior that doesnt appeal to him matter when he can find groups that do and they dont overlap?
He has no incentive to listen to other men. Chris Brown and John Lennon are perfect examples of this. Men with a documented history of abusive behavior whose most ardent supporters are the very people they are most likely to harm. They're rewarded, so they dont change. Chris Brown could be talked to and even beaten but find someone more then willing to lick their wounds. Reward is a greater motivating factor than pain.
If someone handed you 1000 dollars every time you littered or even encouraged you to litter so they could give you 1000 dollars, I guarantee your backyard would look like the great pacific garbage patch.
Now of course this doesnt mean that men shouldn't try. If anything I'd argue that men do but within their consistent circles. If those circles rarely physically overlap with the bad circles then there's not much that can be done. And there's only so much you can do in the chaos online.
So yeah. Men will change when bad men stop being rewarded for their behavior.