This is your answer.
The social cost to them is minimal or non-existent. They'll have support from their friends or other normies who'll back them either physically or morally. They have to fear the risk of either public embarrassment and everybody laughing at them, or fear serious bodily harm (in the form of getting beaten the fuck up).
I remember being in an uber x pool alone back before the chink virus went "mainstream." Driver made a stop to pick up some uni douche bros (group of three). The guy who ordered it was polite and respectful, trying to make small talk with the driver (probably to keep his rating high). The driver was nearing their stop when one the friends (of the guy who ordered it) tells the guy something like "hey, where the fuck are you going? the turn was back there, asshole" (this was a while ago, I'm paraphrasing as best as I can recall). The driver was in his late 40s if I had to guess, and had some Eastern European sounding accent (you could clearly tell he was an immigrant). He says he's sorry, he's following the gps. The fucking douchebag doesn't let up. "You should know to how fucking drive around these streets. Get off uber."
This is where I had enough of this asshole and butted in. "Hey, buddy, I can see his gps. He didn't make a mistake. Let it go." "Who are you, his boyfriend?" This is where I gave him a good long look and said, "I know your type. You like to talk big and act tough when your friends are around, but when your alone your balls shrivel up and you're careful not to piss people off." Then I ask his friend, "this isn't the first time he's acted like this, right?" He laughs and says, "you read him like a book." I ask him, "would you risk your life for him?" (talking to the same guy about his asshole friend). The mood suddenly changes like shit just got real. I quickly tell him not to answer that but to rethink his friendship with this asshole. When they leave the driver thanks me profusely for sticking up for him and offers to take me to my destination for free. I didn't take him up on it and told him not to worry about it.
Most normies are just like that little fucking faggot. They crumple under light resistance.