I disagree with your metaphor. If the bridge you're on collapses, you could be seriously injured. If the CRM you're working in crashes, you're moderately inconvenienced until it comes back up.
Or maybe the software you use leaks your secrets to others and you are unwillingly outed as transgender/gay/in-disagreement-with-the-state/etc...
In this digital age, bad software can do irreparable harm to people. We need to keep this in mind and hold ourselves to a higher standard.
[1] http://dealbook.nytimes.com/2012/08/02/knight-capital-says-t...
[2] http://money.cnn.com/2012/08/09/technology/knight-expensive-...
You could find loopholes in any analogy. That's what they are - analogies. Perhaps a different one could capture what I wanted to say.
Everybody can sing, but not everybody can listen it.