I don't use TikTok myself but I guess you see what you want to see.
Kinda hard to make general statements about content on a platform that is built around curating to individual tastes. I would be surprised if people more interested in celebrities and rich people would not be able to get an endless stream of "professional influencer" content on TikTok as well.
This is true for every platform. I always find it strange when people complain their Twitter feed is toxic, when they have quite a lot of control over who's on there or not. Admittedly I use Tweetdeck which is less algorithmic, but still. I think even default twitter lets you block retweets from certain people you follow?