Bullshit. The difference is that in finance (trading, at least), good technology is seen as a competitive advantage that makes a meaningful impact on P&L. When financial companies do well they tend to share the love in the form of cash bonuses. This is a strategy other industries could adopt but choose not to.
Also one other nit, there are only a few companies (the megabanks) that are big enough to have a government backstop if they blow up. There is a whole world of smaller outfits doing business without any such guarantee.