It's not that they have forgotten. It's that they are privileged enough to not need to be aware of it or feel the dark effects as they creep in. Even non rich people can be privileged to a certain degree.

I have a bud who is basically a neet because of health conditions and he's like that, 'both sides are the sameish'. His family isn't rich but his mom has a decent middle class work from home job and they moved to a cheap AF state so they do alright. He's basically shielded from anything that could happen since he's a white, straight, male with health insurance through his mom.

I like to sometimes remind people that being numb doesn't mean you aren't being hurt. If your arm is numb and someone is stabbing it with a knife, that's probably still a problem.