[OkayPhysicist]

Sure, we programmers aren't likely to kill anyone with malpractice (in most software development disciplines, anyway). But we have a much, much broader impact. An exceptionally bad bridge collapse kills maybe a couple hundred people. Incompetent or malicious coding practices on a site negatively effect millions, with some sites getting up to the billions.

[necovek]

No disagreement there, but opportunity costs are present and unregulated everywhere: eg. a bad traffic light design (timings) might increase congestion and greenhouse gasses emissions 10×, but nobody is losing their traffic engineering license for that.