Just recently on Dragons Den had an episode with a unproven cure for M E which they have had to Remove from iPlayer and generally even in mainstream media getting a poor response.
Interesting such stuff isn’t universal as disability isn’t a homogeneous lump, for example Brain Injury doesn’t get any, but lots of we can cure your child who is neurodivergent ie ADHD and similar.
It’s one reason I moved away from the dyslexia groups admittedly nearly 20 years ago!