Earlier quoted context omitted.
I think it is unfair to think that banks don't want to do things correctly but they suffer along with all other corporates of too many levels of management to be agile, systems that are far to risky to change/replace, legacy systems and a high turnover of staff. If I ran a bank, I suspect I would run it exactly the same way because I have to.
Perhaps I'm too close to the issue as I have worked with these businesses, but I disagree. This is intentional on their part, because banks first and foremost are about identifying and managing risk. If they can find a way to mitigate that risk or externalize it, then they no longer need to deal with it head-on. Most of the risks related to IT should be dealt with head-on because they grow over time as you stay still…
Nassim Taleb has written entire books on this fact about banks. It's interesting that the same flaws in their financial thinking apply to their IT infrastructure.