The author talks about the phenomenon like it's just an individual failing and exhorts people to "be human". But I think that "who cares?" is in fact a natural human reaction to the incentives. We need to look at how our society is structured and how the incentives are set up. I would highlight two factors that I think are consequential in the current economy: corporate consolidation and job insecurity.
Increasingly, we have larger corporations eating everything, including other companies, leaving consumers with fewer choices. In recent years there has finally been some pushback from the government—antitrust was more or less nonexistent ever since Microsoft got a slap on the wrist in 2001—but it remains to be seen whether this will end with more than just another wrist slap, and whether the new administration will roll back even the small progress made. When we have more competition, more economic choices, more companies, indeed more smaller companies owned by individuals rather than by collectives of fund managers (effectively a tragedy of the commons), we're more likely to have people in power who do care, and the people who don't care have to compete against the people who do, which incentivizes caring. On the other hand, corporate consolidation leads to a small number of people controlling everything, who care about nothing but profit.
At the lower levels, below the C-suite (with their golden parachutes rewarded regardless of success or failure), job insecurity has become a fact of life for everyone. The epitome of this situation is the so-called "gig economy", in which millions of people don't even have permanent employment or hours (or health insurance, for that matter) but are forced to live day-to-day with tenuous connections to giant corporations and the odd jobs those corporations may throw their way. Even people who do have full-time jobs can be tossed away unceremoniously like so much trash at any time in mass layoffs, for any reason or no reason. The question is, in the face of such job insecurity, why should employees care are their jobs? Their employers clearly don't care about them. There was a time, many decades ago, when companies were more like families, felt some community responsibility, and an individual could work for the same company their entire career and retire there. The incentives were more aligned to caring about your job; it was similar to caring about your own family.
The way that humans behave depends crucially on the environment: place them in a healthy, supportive situation, and they'll tend to behave well; place them in a hostile situation, a war of all against all, and they'll tend to behave badly. We need to arrange our society intentionally so that the incentives are aligned for mutual benefit and caring. We primates are inherently imitative.