...yet for every one of those, there are plenty of others trying to scam the public, launder money or evade taxes.
It is not surprising that this above is one major reason that icos won't get financial support from banks. Banks are very shrewd business institutions, they wouldn't dive into a business venture they are not sure of recouping their investment. Icos have been bastardized and banks don't see them as a safe place to put money on.
ICOs are just one aspect of cryptocurrency. And I doubt ICO organizers approach banks or any traditional institution for loans to run their project, as it is too big a risk with hardly any collateral options.
Companies and industries associated with cryptocurrency should not be segregated as far as they are in compliance with all laws.