I mean, Theranos was less classic ethical nightmare as it was just a grift, separating suckers from their money. A possible more fitting example in the same vein would be Roger Wakefield’s “studies” on how the MMR vaccines cause autism., where actual children got harmed and spurred on the antivax movement.
Sphinx cats are also notorious for skin conditions, making them high maintenance in terms of vet visits, sadly.
But yeah, it would be cool to meet one in person.