[iends]

I don't think the term HACKERS means what you think it means.

In any case, I imagine if you're already working at a bank and the CIO, you can introduce node quite easily to your organization.

If you're building a product to sell to banks, I imagine you're going to have to stick with Java/C# but might be able to get away with Scala (only because of the JVM). Node will just be perceived as too cutting edge for many organizations.