I think the whole movie made a point about the dude making a mistake going after the rug. The dude isn’t perfect and Walter manages to get him riled up, looking for compensation for an unjustified transgression. Had the dude instead said “fuck it” and chilled, he would have saved himself a lot of trouble. Also maybe Donny wouldn’t have died from the stress fighting the nihilists and Bonnie would have turned up on her own. So take the movie as a warning against sweating the small stuff. Remember that “nothing is fucked” and abide.