Cf: The death of the wolves is the safety of the sheep (Br.). When knaves (rogues) fall out, honest men come by their own (Am., Br.). When thieves fall out, honest men come by their own (Br.). When thieves fall out, honest men get their due (Am.)
Русско-английский словарь пословиц и поговорок. Академик.ру. 2013.