The analogy was that GDPR fines, similar to other administrative fines (which was the term that had escaped me) like traffic tickets, do not require damage to be shown (although it plays a role in setting the amount of the fine) - unlike e.g. cases pressing for damages, brought by a wronged party, would be.
The law regarding dash cams (if there is an explicit one, I don't know enough about the situation in Austria) might just declare it a privacy violation, and thus defer to the enforcement mechanisms created by GDPR.
