Do 'Neuromorphic' chips do anything useful? At least neural networks have well known utility, but afaik, neuromorphic (i.e. heavily simplified models of neurons

Do 'Neuromorphic' chips do anything useful? At least neural networks have well known utility, but afaik, neuromorphic (i.e. heavily simplified models of neurons that one only hopes - but cannot prove are correct) have no useful applications - or even theoretical functions.