And sure, there are costs to leaking personal data and then getting sued, but a lot of companies anonymize their data as a practice AND can't really be held accountable to consumers AND even if you do get sued, it's likely not enough to put a company like Google or Facebook anywhere close to going out of business.
It's reasonable to suggest that there will be some kind of government intervention into specific practices surrounding data acquisition, but I think a full overhaul or ban on personal data collection is unlikely: the moneyed interests simply value this data too much to allow for (American) politicians to disrupt its influence on their stock portfolios. Couple this with Congress's inability to act on numerous problems it faces and the fact that most current Congressmen and women (and their constituents) really don't consider this a top-tier issue and you've got a whole lot of reason for things not to change course. For data to become a real "toxic asset" there needs to be a dramatic sea change - it's not as much of an inevitability as the author suggests.