Interesting. Then again, I lived overseas and the government bank there was an enormous entity that could very well have employed engineers for various reasons. I just had this picture of a Bank of America branch laying its own sewer lines :P
Oh, I work in a private bank, here engineers are used to model risk and other quantitative things, there are many of them in insurance and securities as well. I do not know outside of Brazil but there are a huge pool of engineers here in São Paulo working in the same career paths. Actually I saw a number of engineers in NYC who worked in finance as well.