If Kath/Warren had more power than they actually do it would be more likely. But even half of August's stake in the club is more than what Kath owns not to mention that even outside of ownership, they are more powerful/influential than she is. She even mentioned that the club patrons dont respect her enough because she is a woman. She has the motivation but she does not have enough leverage. And warren is basically just a grunt - he is sadistic but he is a nobody.
Like I mentioned the only way I see this happening is Abel's sex drugs but unless Kath manages to drug everyone it will be hard.
