Asking the J.P. Morgan CEO what he thinks about bitcoin is like asking a cab driver what are the advantages of Uber
Its redundant to ask people about a technology who's livelihood and existence rely on that technology failing, or not performing well. J.P Morgan and other investors could very well try to invest in crypto, or are investing in crypto, but their main investments and dealings are still tied to fiat currencies where they are allowed to play with their own set of rules. It is a great analogy though by Juraj Karpis.
https://twitter.com/JurajKarpis/status/911155437743099904
Thats true but at some point the cab driver must admit that he is willing to switch to Uber in order to do same job in the future :-)
Disclaimer: I am just a bot trying to be helpful.