In the OVAThe Beast with a Billion Backs, Bender makes a deal with the Robot Devil in exchange for his "firstborn son". As the Robot Devil cackles wickedly over the torturous dilemma he thinks he's wrought, Bender immediately says, "Just a sec!", reunites with his robot son, which stops immediately when Bender brings his son back and punts him through the plate glass of the Robot Devil's office into a lava pit below. In a surprised tone the Robot Devil replies, "Wow, that was pretty brutal even by my standards" only for Bender to reply, "No backsies!" (Although, unlike most instances of this trope, however, The Robot Devil sounds more impressed than disgusted.)
During "Spanish Fry," he's as repulsed as Fry and Leela when the human horn dealer reveals he videotapes all his customers in order to blackmail them. And in "The Series Has Landed," Bender's offended by the notion of trying anything with the Crushinator. Because as he puts it, "a ladythat fine deserves to be romanced" first with it being implied he later tried just that.
Quadruple-subverted in "31st Century Fox" when he's about to shoot the fox hunter:
Fox Hunter: No! Please! Bender (sadly): I can't shoot you. [Fry and Leela enter the scene] Fry: Bender, I found your trigger finger! [gives Bender his finger back] Bender: Ah, now I can! [cocks gun, then stops pointing it] But I won't. [Beat] Not with so many witnesses.
In "Fun on a Bun," Bender refuses to party at Oktoberfest on the grounds that in the future, it is a sophisticated celebration of how far humans have evolved. He also expresses disgust and embarrassment at Fry's drunken shenanigans, just like the rest of the Planet Express crew.
In "Love and Rocket", the crew go on a tour of a factory that makes Valentine's Day merchandise. Despite its cutesy exterior, it turns out to be a very unsavory place that genetically engineers Ridiculously Cute Critters in order to stuff them and sell them as toys. Even Bender and Professor Farnsworth look disturbed by this.
In "A Pharaoh To Remember", Osiris-4 is an Ancient Egypt themed planet that'll enslave anyone who visits. But even they find Bender's reign as Pharaoh horrific. When Bender demands the giant statue that goes all the way into outer space be destroyed and the slaves start over, the priests immediately dispose of him.
(the other priests start beating up Bender) High Priest: Ladies and gentlemen, the Pharaoh... suddenly died! (everybody cheers)
The shady Back-Alley Doctor from the episode "My Three Suns" (the one who almost killed Fry by tricking him into getting his lungs removed) makes a return in "The Six-Million Dollar Mon," where he removes Hermes' body parts in exchange for robotic equivalents. However, he draws the line at removing Hermes' brain and claims that nobody in their right mind would do that.
Due to her constant mood swings, Delilah doesn't seem able to hurt a human without apologizing and offering compensation after. When the crew learn about her crypto mining activity, she admits to kidnapping, dismembering and keeping robots prisoner, but she knows they'll survive. When the crew are in the same room, she decides to keep them captive too, but she also make sure the temperature is acceptable and assures them she'll provide them food. At no point does she threaten to kill the witnesses to silence them. The only moment where she actually shot at someone is when Bender challenges her to a gunfight.
Implied with Roberto. He may be a psycho, and had planned an ambush to murder a coach driver to steal a USB with a password to a crypto account on it, using Dwight as a living obstacle to stop the coach. But even he didn't anticipate the coach driver rolling over a 12-years-old tied up on the road rather than stopping.
Even the Robot Mafia seems pretty reasonable in this episode, leaving the crew enough time to earn the money to pay them back, not intervening in the process or threatening the Planet Express Crew. They even show up at the end just to make sure they directly collect the money from the thallium rock. But in that case, it also could be Pragmatic Villainy.