Will any developers involved in this horrible scandal ever will be held accountable for their work?

I wonder if the developers who were responsible for such a bug-infested piece of software realise their work has destroyed people's lives? (They presumably never met the users of their software.)

Do those developers even realise it was their incompetence that caused untold misery? Or are they completely detached from the events in this scandal and see themselves as simply cogs in the 'system' and thus blameless?

Developers are often quick to point the finger of blame at others (usually management). But this cannot excuse what those developers delivered in this case: software simply unfit for use. The end consequence was the ruin of many lives. Meanwhile, the developers face no consequences.