Australia proposes new corporate penalties for privacy breaches

I wonder what would happen if a nation amended their constitution such that the personal information of individuals is their private property and the sale, sharing all other forms of transfer of personal information were to be made illegal unless the owner if the information specifically consents in writing to share an item of information (example, medical information, college transcripts), with limited carve outs for law and tax enforcement and maybe debt collection?

Until the owners of these companies are both personally financially liable and criminally accountable for their screwups (and I don’t mean any of that soft, country club-like treatment they always get - I mean throw them in with the lifers in prison), levying all the financial penalties against their companies is completely meaningless.