My opinion is Little Bill created the mess
I feel it was all Little Bill’s fault that the entire situation occurred. Everybody’s actions are their own (William, Ned, Bob, Skinny, etc…) but Bill put this whole thing in motion. If he would have come down harder on the Cowboys, and it’s my opinion he was too lenient, the whole chain of events thereafter would not have occurred.
Bill punished the Cowboys by making them give Skinny horses to even out the money Skinny was presumed to lose with Delilah’s inability to work. That’s just restitution. What about the punishment for the actual crime? Even one of the ladies said something to the effect “You’re not even going to whip him Bill?”
If Bill would have levied some sort of punishment for the actual crime, I feel the chain of events afterwards would never have occurred. I felt Bill, if given the chance, would have gone back in time and reconsidered the way he punished the cowboys. Since he can’t go back in time, he was stuck with his initial decision. Going back on his decision after the fact would have been a bad choice (put in question his ability to Sheriff). In short, Bill messed up badly and caused his own demise, and the demise of many others (including the cowboys he was too lenient with).