Exactly - either the data is basically not valuable at all (the category for which PII rarely fits) or else when the company collapses or is bought, the data mo

Exactly - either the data is basically not valuable at all (the category for which PII rarely fits) or else when the company collapses or is bought, the data moves too. There's always an incentive to steal or leak it to other companies for money; so as long as the incentives are aligned with GATHER ALL DATA and KEEP IT FOREVER then yes, it will just be a matter of a time before each data store is compromised by mistake or purposefully.