I think it's more notorious than anything, and then it has a pushback over that which makes it get evaluated higher by people defending it as actually having good themes in showcasing wealthy businessmen as vapid, alienated, chauvinist lunatics who don't actually work but live in luxury while destroying everyone around them. That just signal boosts it a bit more I think, like "oh no it's not edgy trash it's got a good point to it" sounds a lot more emphatic than "yeah it was a movie and it had some good points."

I think that's a general phenomenon too, where something that's problematic but has redeeming qualities gets disproportionate attention because of people defending it as "actually good" which generally tends to result in exaggeration or at least more attention.