As someone who has worked in the Investment Banking industry for a while, I'm always amazed that risk professionals get paid significantly less than the front office guys. This in turn attracts less talented people in risk, who can then be outsmarted by the whipper snappers in the front office teams. If IBs don't want to lose bucket loads of money every so often, pay your risk guys a bit more so you hire the same cal…
The entire model is balancing risk and reward. Being careful means you'll be eaten by your competitors, your shareholders will punish you and executive comp will take a hit - what is the point of playing the game then? Instead reward taking risks and if shit hits the fan, there are always heads that can roll (if need be), fines that can be negotiated with DOJ/SEC and ever-sneakier tactics can be invented to structure…
Unfortunately, most risk managers I knew barely understood the theory enough to identify the hidden risks in the books they oversaw. Most even struggled to get the right data out of the systems to do their jobs properly!
You do make a valid point - if the recklessness somehow pays off, you're a hero (eg. Paulson).